Gen 7:1  And the LORD said unto Noah, Come thou and all thy house into the ark; for thee have I seen righteous before me in this generation.

Shatapatha-Brahmana, I, 8, 1-6.

1. In the morning they brought to Manu water for washing, just as now also they (are wont to) bring (water) for washing the hands. When he was washing himself, a fish came into his hands.
2. It spake to him the word, 'Rear me, I will save thee!' 'Wherefrom wilt thou save me?' 'A flood will carry away all these creatures: from that I will save thee!' 'How am I to rear thee?'
3. It said, 'As long as we are small, there is great destruction for us: fish devours fish. Thou wilt first keep me in a jar. When I outgrow that, thou wilt dig a pit and keep me in it. When I outgrow that, thou wilt take me down to the sea, for then I shall be beyond destruction.'
4. It soon became a ghasha (a great fish); for that grows largest (of all fish). Thereupon it said, 'In such and such a year that flood will come. Thou shalt then attend to me (i.e. to my advice) by preparing a ship; and when the flood has risen thou shalt enter into the ship, and I will save thee from it.'
5. After he had reared it in this way, he took it down to the sea. And in the same year which the fish had indicated to him, he attended to (the advice of the fish) by preparing a ship; and when the flood had risen, he entered into the ship. The fish then swam up to him, and to its horn he tied the rope of the ship, and by that means he passed swiftly up to yonder northern mountain.
6. It then said, 'I have saved thee. Fasten the ship to a tree; but let not the water cut thee off whilst thou art on the mountain. As the water subsides, thou mayest gradually descend!' Accordingly he gradually descended and hence that (slope) of the northern mountain is called 'Manu's descent.' The flood then swept away all these creatures and Manu alone remained here.
http://www.galileolibrary.com/history/history_page_9.htm

Translation by Julius Eggeling, in Sacred Books of the East, XII (Oxford, 1882), pp. 216-18.

Accordingly the sea swelled as huge rain-clouds poured down incessantly, rolled on and engulfed the world; the boat appeared, and also the great Fish; to its single snout, Satyavrata tied the ark. Dragging the ark over the waters, the Lord as a Fish imparted to Satyavrata the teachings about Truth which were collected in the Purana known as the Matsya (Fish). After the waters of the deluge had subsided, the Lord slew the demon Hayagriva and restored the Vedas to Brahma, who awoke from his slumber.
 [Achaean, the Indian Heritage, p. 377.]

http://www.galileolibrary.com/history/history_page_9.htm

Sankhasura (Sanskrit) A daitya said in Hindu legend to have waged war against the gods and to have conquered them, upon which he stole the Vedas and hid them at the bottom of the sea, whence they were rescued by Vishnu in the form of a fish. There are also vague references in connection with one of the dvipas (Sankha-dvipa) and it is tempting to suppose that they are connected.

Another Hindu legend mentions the killing of Sankhasura by Krishna -- another instance of the way in which this avatara is placed in many different ages as the Krishna spirit in the world rather than as any incarnated avatara of that name: the death of Krishna is stated as having begun the kali yuga in 3102 BC, whereas Sankha-dvipa was one of the great islands of the Atlantean continental system of several million years ago.

Hayagriva, meaning "one with the horse's neck", was the son of 'Kashyap Prajapati'. Through great penance he managed to obtain a boon from the Goddess Durga that he could only be killed by another "Hayagriva". This instilled a sense of invincibility and he started harassing the Devas. The Devas turned to Vishnu for aid, but despite a long struggle of a thousand years, he was also unable to kill Hayagriva.

Tired and drained after the battle, Vishnu proceeded to Vaikuntha Dham to rejuvenate and meditate in padamaasna (a yoga posture) with his head supported by the upper end of his taut bow. The Devas once again approached Vishnu for help against Hayagriva but were unable to rouse him from his meditation. The Devas asked a swarm of termites to assist in waking Vishnu by gnawing away the string of the bow upon which he was resting. However, the snapping of the bow string produced such a resonant sound that the universe trembled, and the broken string lashed out with such force that Vishnu's head was severed from his body.

The Devas were mortified, and prayed to the goddess Durga for guidance. Durga was pleased with their prayers and told the Devas that they need not fear, as no incident in this universe was without some purpose. She then told them of her boon to Hayagriva and asked them to attach the head of a horse to Vishnu so that he in the guise of "Hayagriva" (that is, one with a horse's neck) could kill his foe.

Brahma attached the head of a white horse to Vishnu's body and the revived Vishnu  entered into battle with Hayagriva and eventually killed him.

On the Narrative of Hayagriva (The Devi Bhagavata Purana 1.5)

5-9. Sûta said :-- O Munis! Hear all attentively the glorious deeds of the supremely energetic Vishnu, the Deva of the Devas. Once on a time the eternal Deva Janârdana became tired after the terrible continuous battle for ten thousand years. After this the Lord Nârâyana seated Himself on Padmâsan (a kind of posture) in some lovely place on a level plot of ground and placing his head on the front of his bow with the bow strung and placed erect on the ground fell fast asleep. Visnu, the Lord of Ramâ, was exceedingly tired and thus he fell soon into deep sleep. At this time Indra and the other Devas, with Brahmâ and Mahesâ began a sacrifice.

10-13. Then they, for the sake of success in Deva's well, went to the region of Vaikuntha to meet with the Deva Janârdana, the Lord of sacrifices. There the Devas, not finding Visnu, came to know by their Dhyân (meditation) where Bhagavân Visnu was staying and thither they went. They saw that the Lord Visnu, the Deva of the Devas was lying unconscious, being under the arms of Yoganidrâ (the yogic sleep). Therefore they took their seats there. Seeing the Lord of the universe asleep, Brahmâ, Rudra and the other Devas became anxious.

14-18. Indra then addressed the Devas :--“O best of the Suras! Now what is to be done! How shall we rouse Bhagavân from His sleep? Now think of the means by which this can be effected”. Hearing Indra's words S’ambhu said :-- “O good Devas! Now we must finish our sacrificial work. But if the sleep of Bhagavân be disturbed, He would get angry.”

Hearing S’ankara's words, Paramesthî Brahmâ created Vamrî insects (a sort of white ants) so that they might eat up the forepart of the bow that was lying on the ground causing the other end rise up and thus break His sleep. Thus the Deva's purpose will, no doubt, be fulfilled. Thus settling his mind, the eternal Deva Brahmâ ordered the white ants Vamrîs to cut the bow string. ….

25-30. Sûta said :-- Thus ordered by Brahmâ, the Vamrî insect soon ate away the fore end of the bow that rested on the ground. Immediately the string gave way and the bow went up; the other end became free and a terrible sound took place. The Devas bcame afraid; the whole universe got agitated; the earth trembled. The sea became swollen; the aquatic animals became startled; violent wind blew; the mountains shook; ominous meteors fell.

The quarters assumed a terrific aspect; the Sun went down the horizon. In that time of distress the Devas became anxious what evil might come down. O ascetics! While the Devas were thus cogitating, the head with crown on it of the Devadeva Visnu vanished away; no body knew where it fell.

31-36. When the awful darkness disappeared, Brahmâ and Mahâdeva saw the disfigured body of Visnu with its head off. Seeing that headless figure of Visnu they were greatly surprised; they were drowned in the ocean of cares and, overwhelmed with grief, began to weep aloud. O Lord! O Master! O Devadeva! O Eternal one! What unforeseen extraordinary mishap occurred to us to-day! O Deva! Thou canst not be pierced nor cut asunder, nor capable of being burnt; how is it then that Thy head has been taken away! Is this the Mâyâ (majic) of some. Deva? O all pervading one! The Devas cannot live when Thy condition is thus; we do not know what affection dost Thou have towards us. We are crying because of our selfish ends; perhaps this therefore has occurred. The Daityas, Yaksas, or Râkhsasas have not done this; O Lord of Laksmî! Whose fault will we ascribe this to? The Devas themselves have committed this loss to themselves?

37-41. O Lord of the Devas! The Devas are now dependent! They are under Thee. Now where are we to go? What are we to do? There is none to save the dull stupid Devas!

At this juncture, seeing S’iva and the other Devas crying, Brihaspati, supremely versed in the Vedas, consoled them thus :-- “O highly fortunate one! What use there will be in thus crying and repenting? It ought you now to consider the means that you should adopt to redress your calamities. O Lord of the Devas! Fate and one's own exertion and intelligence are equal; if the success comes not through Fate (Luck or chance) one is certainly to show one's prowess and merit”.

42-46. Indra said :-- Fie to your exertion when, before our eyes, the head of Bhagavân Visnu Himself has been carried off! Fie, Fie to your prowess and intelligence! Fate is in my opinion, the supreme. ….

47-50. O Glorious ones!  …. meditate on the Eternal Mahâmâyâ; who is the Mother of all, who is supporter of all, who is of the nature of Brahmâvidyâ (the Supreme Knowledge) and who is beyond the Gunas, who is the Prime Prâkriti, and who pervades the three Lokas, the whole universe, moving and unmoving; She will dispense our welfare. ….

51-54. Brahmâ said :-- “O Vedas! Now go on and chant hymns to the Sacred Highest Devî Mahâmâyâ, who is Brahmâvidyâ, who brings all issues to their successful issues, who is hidden in all forms.” Hearing His words, the all-beautiful Vedas began to chant hymns to Mahâmâyâ who can be comprehended by Jñân, and who pervades the world.

The Vedas said :-- Obeisance to the Devî! To the Mahâmâyâ! To the Auspicious One! To the Creator of the Universe! We bow down to Thee, who is beyond the Gunas, the Ruler of all the Beings! O Mother! Thou givest to S’ankara even His desires. Thou art the receptacle of all the things; Thou art the Prâna of all the living beings; Thou art Buddhi, Laksmî (wealth), S’obhâ, Ks'hamâ (forgiveness), S’ânti (peace), Sraddhâ (faith), Medhâ (intellect), Dhriti (fortitude), and Smriti (recollection).

55. Thou art the vindu (m) over the Prânava (om) and thou art of the nature of semi-moon; Thou art Gâyattri, Thou art Vyârhiti; Thou art Jayâ, Vijayâ, Dhâtri (the supportress), Lajjâ (modesty), Kîrti (fame), Ichchâ (will) and Dayâ (mercy) in all beings.

56-57. O Mother! Thou art the merciful Mother of the three worlds; Thou art the adorable auspicious Vidyâ (knowledge) benefitting all the Lokas; Thou destroyest the Universe and Thou skilfully residest (hidden) in the Vîja mantras. Therefore we are praising Thee. O Mother! Brahmâ, Visnu, Mahes’vara, Indra, Sûrya, Fire, Sarasvatî and other Regents of the Universe are all Thy creation; so none of them is superior to Thee. Thou art the Mother of all the things, moving and non-moving.

58-61. O Mother ! When Thou dost will to create this visible Universe, Thou createst first Brahmâ, Visnu and Mahes'vara and makest them create, preserve and destroy this universe; but Thou remainest quite unattached to the world. Ever Thou remainest constant in Thy one form. No one in this Universe is able to know Thy nature; nor there is any body who can enumerate Thy names. How can he promise to jump across the illimitable ocean, who cannot jump across an ordinary well.

O Bhagavatî! No one amongst the Devas even knows particularly Thy endless power and glory. Thou art alone the Lady of the Universe and the Mother of the world.

62-68.  …  O Mother!... Is it that Hari incurred any heinous sin. How can that be! Where is sin to thy followers who serve Thee! O Mother!  …..  was it that Visnu became proud and to curb that,  …Therefore dost Thou gladden Her by giving back Her husband's life.

69-73. Sûta said :-- Thus praised by the Vedas with their Angas, with Sâmagânas (the songs from the Sâma Veda), the Nirgunâ Mahes'vari Devî Mahâmâyâ became pleased. Then the auspicious voice came to them from the Heavens, gladdening all, and pleasing to the ears though no form was seen: “O Suras! Do not care anything about it; you are immortal (what fear can you have?) Come to your senses. ….

74-75. Does anything take place in this world without any cause? Now hear why Hari's head was cut off. Once on a time, seeing the beautiful face of His dear wife Laksmî Devî, Hari laughed in presence of Her.

87-92. Abandoning all sorts of enjoyments, with control over his senses and without any food, the Daitya (Hyagriva) did Japam of the (repeated) one syllabled Mâyâ-Vija-mantra and, meditating the form of the Utmost Sakti of Mine, adorned with all ornaments, practised very terrible austerities for one thousand years. I, too, went to the place of austerities in My Tâmasî form, meditated by the Daitya and appeared before him.

93-95. Hayagrîva said :-- “Obeisance to the Devî Mahâmaye!...

96-100. The Devî said :-- “O child! I am very much satisfied with your wonderful tapasya and devotion. Now say what boon do you want. I will give you the boon that you desire”. Hayagrîva said ;-- “O Mother! grant me that boon by which death will not come to me, and I be invincible by the Suras and Asuras, I may be a Yogi and immortal”.

The Devî said :-- “ Death brings in birth and birth brings in death; this is inevitable.” This order of things is extant in this world; never its violation takes place. O best of the Râksasas! Thus knowing death sure, think in your mind and ask another boon.….   There is none in the three worlds to kill him. So let Visvakarmâ take a horse's head and fix it on the headless body of Visnu. Then Bhagavân Hayagrîva will slay the vicious wicked Asura, for the good of the Devas”.

106-112. … Sûta said :-- Hearing these words, Visvakarmâ quickly cut off with his axe, the head of a horse, brought it before the Devas and fixed it on the headless body of Visnu. By the grace of Mahâmâyâ, Bhagavân became horse-faced or Hayagrîva.

Then, a few days after, Bhagavân. Hayagrîva killed that proud Dânava, the Deva's enemy, by sheer force. Any man, hearing this excellent anecdote, becomes freed, certainly of all sorts of difficulties. Hearing or reading Mahâmâyâ's glorious deeds, pure and sin destroying, gives all sorts of wealth.

Thus ends the fifth chapter of the first Skandha on the description of the narrative of Hayagrîva in the Mahâ Purâna S’rimad Devî Bhâgavatam.

 

 S’rimad Devî Bhâgavatam X,I

On the killing of Madhu Kaitabha

1-49. Sûta said:--O Munis! When the excellent Tâmasi S’akti, the Goddess presiding over sleep came out from the eyes, mouth, nose, heart, etc., of the body of the World-Guru Visnu and rested in the celestial space, then the powerful Lord Visnu began to yawn and got up. He saw the Prajâpati Brahmâ, terrified and spoke to him in words, deep like rumbling in the clouds :-- “O Bhagavân Padmayone! What makes you come here, and leave your tapasyâ? Why do you look so terrified and anxious?” Hearing this, Brahmâ said: “O Deva! The two very powerful and very terrible Daityas, Madhu Kaitabha sprung from the wax of Thy ears approached to kill me; terrified thus, I have come to Thee. So, O Lord of the Universe! O Vâsudeva! now I am quite out of senses and terrified; save me.” Visnu, then, said :-- “Now go and rest in peace, without any fear; let those two stupids, whose life has been well nigh exhausted, come to me for battle; I will certainly kill them.”

Sûta said:-- While Bhagavân Visnu, the Lord of all the Devas, was thus saying, those two very powerful Dânavas, elated with pride, came up there, in their search for Brahmâ. O Munis! The two proud Daityas stood there in the midst of the Pralaya water without anything to stand on and with calm attitude. They then spoke to Brahmâ as follows:-- O You have fled and come here? You cannot escape. Go on and fight. I will kill You before this one.

Then I will kill him also who sleeps on this bed of serpent. Either give us battle or acknowledge yourself as our servant. Hearing their words, Janârdan Visnu addressed them as follows:-- “O two Dânavas, mad for war! Come and fight with me as you like; I will surely curb your pride. O two powerful ones! If you trust me, come and fight”. Hearing this, the two Dânavas in the midst of that mass of water resting without any support, came up there to fight, with their eyes rolling with anger. The Daitya, named Madhu, became very angry, came up quickly to fight while Kaitabha remained where he stood. Then the hand-to-hand fight ensued between the two mad athletes; Bhagavân Hari and Madhu became tired; Kaitabha came up and began to fight. After that Madhu and Kaitabha joined and, blind with rage, began to fight again and again hand to hand with the very powerful Visnu. And Bhagavân Brahmâ and the Prime Force Âdyâ S’akti witnessed this from the celestial Heavens. So the fight lasted for a long, long, time; yet the two Dânavas did not feel a bit tired: rather Bhagavân Visnu became tired. Thus five thousand years passed away; Hari then began to ponder over their mode of death.

He thought:-- “I fought for five thousands of years but the two formidable Dânavas have not been tired anything, rather I am tired; it is a matter of great surprise. Where has gone my prowess? and what for the two Dânavas were not tired; What is the cause?

This is a matter, now, seriously to be thought over”. Seeing Bhagavân Hari thus sunk in cares, the two haughty Dânavas spoke to him with great glee and with a voice like that of the rumbling of cloud :-- “O Visnu ! If you feel tired, if you have no sufficient strength to fight with us, then raise your folded palms on your head and acknowledge that you are our servant; or if you can, go on fighting. O intelligent one!

We will take away your life first; and then slay this four-faced Brahmâ”. Hearing the words of the two Dânavas, resting there without any support in the vast ocean, the high-minded Visnu spoke to them in sweet consoling words :-- “See, O heroes! no one ever fights with one who is tired, afraid, who is weaponless, who is fallen and who is a child; this is the Dharma of the heroes. Both of you fought with me for five thousands of years. But I am single handed; you are two, and both equally powerful and both of you took rest at intervals. I will therefore take rest for a while, and then fight with certainty. Both of you are very powerful and very much elated in vanity. Therefore rest a while. After taking rest for a while I will fight with you according to the just rules of warfare.” Hearing these words of Hari, the two chief Dânavas trusted and remained far aloof, ready to fight again.

Now the four-armed Vâsudeva, seeing them at a sufficient distance, began to ponder in his mind thus :-- “How their death can be effected? Thinking for a time, he came to know that they have been granted, by the Supreme S’akti Devî, death at their will (Ichchâmrityu); and therefore they are not getting tired. I fought so long with them uselessly; my labour went in vain. How then can I now fight, with this certain knowledge. Again if I do not fight, how these two Dânavas, elated with their boon and giving troubles to all, be destroyed? When the boon is granted by the Devî their death is also well nigh impracticable. Who wants his own death, even placed in very great distressed circumstances. Attacked by terrible diseases, reduced to indigent poverty no one wants to die; so how can it be expected that these two haughty Dânavas would want their death themselves? Therefore it is advisable me to take refuge of that Âdyâ S’akti, the giver of the fruits of all desires. No desires can ever be fructified unless She is thoroughly pleased. Thus thinking, Bhagavân Visnu saw the beautiful Devî Yoga Nidra S’iva, shining in the air. Then the supreme Yogi, Bhagavân Visnu, of immeasurable spirit began to praise with folded palms that great Bhuvanes'varî Mahâ Kâli, the giver of boons for the destruction of the Dânavas. “O Devî! I bow down to Thee O Mahâmâyâ, the Creatrix and Destructrix! Thou beginningless and deathless! O auspicious Chandike! The Bestower of enjoyment and liberation I do not know Thy Saguna or Nirguna forms; how then can I know Thy glorious deeds, innumerable as they are.

To-day Thy undescribable prowess has been experienced by me, I being made senseless and unconscious by Thy power of sleep. Being tried again and again by Brahmâ with great care to bring me back to my consciousness, I could not become conscious, so much my senses were contracted down. O Mother! By Thy power, Thou didst keep me unconscious and Thou again hast freed me from sleep, and I also fought so many times. O giver of one's honour! Now I am tired; but Thou hast granted boon to the two Dânavas and therefore they are not getting tired. These two Dânavas, puffed up with pride, were ready to kill Brahmâ; and therefore I challenged them to fight with me and they too are fighting fiercely with me in this vast ocean.

But Thou hast granted them the wonderful boon that they will die whenever they will; and therefore I have now come to Thy refuge, as Thou protectest those that come under Thy shelter. Therefore, O Mother, the remover of the Devas' troubles! These two Dânavas are become exceedingly elated by Thy boon and I, too, am tired. Therefore dost Thou help me now. See! those two sinners are ready to kill me; without Thy grace, what can I do now? and where to go?”

50-59. Thus praised by the eternal Vâsudeva Jagannâtha Hari, with humility and pranams, the Devî Mahâ Kâli, resting in the air, said smiling :-- “O Deva deva Hari! Fight again; O Visnu! These two heroes, when deluded by My Mâyâ, would be slain by you; I will delude them certainly, by My side long glance; O Nârâyana! then slay quickly the two Dânavas, when conjured by My mâyâ”.

Sûta said :-- Hearing these loving words of Bhagavatî, Bhagavân Visnu went to the scene of battle in the middle of that ocean, when the two powerful Dânavas of serene tempers and eager to light, became very glad on seeing Visnu in the battle and said :-- “O four-armed one! we see your desire is very lofty indeed; well  stand! Stand! now be ready for battle, knowing that victory or defeat is surely dependent on Destiny. You should think now thus :-- Though it is generally true that the more powerful one wins victory; but it also happens sometimes that the weak gets the victory by queer turn of Fate; so the high souled persons should not be glad at their victories, nor should express their sorrows at their defeat; so don’t be glad, thinking, that you on many former occasions fought with many Dânavas who were your enemies, and got the victory; nor be sorry that now you are defeated by the two Dânavas”. Thus saying, the powerful Madhu Kaitabha came up to fight. Seeing this, Bhagavân Visnu struck them immediately by fist with great violence; the two Dânavas, elated with their strength, struck Hari in return with their fists. Thus fighting went on vigorously.

60-87. Now seeing the two Dânavas of great powers, fighting on incessantly, Nârâyana Hari cast a glance expressive of great distress, towards the face of the Devî Mahâkâli. Seeing Visnu thus distressed, the Devî laughed loudly and began to look constantly with eyes somewhat reddish and shot towards the two Asuras side-long glances, of love and amorous feelings which were like arrows from the Cupid. The two vicious Daityas became fascinated by the side-long glances of the Devî and took great pleasures in them; being extremely agitated by these amorous darts, looked with one steady gaze towards the Devî, of spotless lustre. Bhagavân Hari, too, saw the wonderful enchanting pastime of the Devî. Then Hari, perfectly expert in adopting means to secure ends, began to speak smiling and in voice like that of the rambling cloud, knowing the two Dânavas enchanted by Mahâmâyâ, thus :--

O two heroes! I am very glad at the mode of your fighting. So ask from me boons. I will grant that to you. I saw many Dânavas before, fighting; but never I saw them expert like you, nor I heard like this. I am therefore, very much satisfied by your such unrivalled powers. Therefore, O greatly powerful pair of Dânavas! I wish to grant both of you any boon that you want. Seeing the Devî Mahâmâyâ, the gladdener, of the Universe, the two Dânavas felt themselves amorous; and therefore they became proud on hearing Visnu's those words and told Visnu, with their lotus-like eyes wide open, thus :--

O Hari! what do you like to give us? We are not beggars; we do not want anything from you. O Lord of the Devas! Rather we will give you whatever you desire; we are donors; not receivers. So O Vâsudeva! Hrisi Kesa! We are glad to see your- wonderful fight; so ask from us any boon that you desire. Hearing their words, Bhagavân Janârdan said :-- “ If you both are so much pleased with me, then I want this that both of you be killed by me.”

 

Hearing these words of Visnu, Madhu Kaitabha became very much wondered and thinking “we are now cheated” remained for some time merged in sorrow. Then reflecting that there is water everywhere and solid earth nowhere, they said :--

“O Janârdana Hari! We know that you are truthful; therefore now we want this desired boon from you that you wanted to grant us before now grant us this desired boon of ours. O Madhusûdana! We will be slain by you; but kill us, O Mâdhava! on a solid earth, free from any water; and thus keep your word.

S’ri Bhagavân Hari laughed and remembering His Sudarsan disc said :-- “O two highly fortunate ones! Verily, I will kill both of you on the vast solid spot without any trace of water. Thus saying, the Devadeva Hari expanded His own thighs and showed to those Dânavas the vast solid earth on the surface of water and said :--

“O two Dânavas! See, here is no water. Place your two heads here; thus I will keep my word and you would keep your word.” Hearing this, Madhu Kaitabha thought over in their minds and expanded their bodies to ten thousand Yojanas. Bhagavân Visnu Hari also extended his thighs to twice that amount. Seeing this, they were greatly, suprised and laid their heads on the thighs of Visnu. Visnu of wonderful prowess, then cut off quickly with His Sudarsan disc the two very big heads over His thighs. Thus the two Dânavas Madhu Kaitabha passed away; and the marrow (meda) of them filled the ocean. O Munis! For this reason, this earth is named Medinî and the earth is unfit for eatable purpose.

Thus I have described to you all that you asked. The sum and substance is this that the wise persons should serve Mahâmâyâ with all thei hearts. The Supreme S’akti is worshipped by all the Devas. Verily verily, I say unto you that this is decided, in all the Vedas and other S’astras that there is nothing higher than this Âdyâ S’akti. Therefore this Supreme S’akti should be worshipped anyhow; either in Her Saguna form or in Her Nirguna state.

Thus ends the ninth Chapter of the first Skandha on the killing of Madhu Kaitabha in the Mahâpurana S’rimad Devî Bhâgavatam of 18,000 verses by Maharsi Veda Vyâs

  

Brahma became extremely proud  of his position as the creator and about his powers and his Knowledge. (jnAnam). Vishnu wanted to teach him the lesson of humbleness. So he created two Asuras Madhu and Kaitabha out of two drops of water from the lotus leaf.  (Other version makes them from his ear wax).  These Asuras stole the Vedas and hid them in the Patala.  Brahma could not create his kalpa era without them.  So he approached Vishnu. Vishnu incarnated as Hayagriva He rushed to Patala lokam and raised His "uthGitham" (outgoing breathe interpreted as OM) in samavedha swaram which terrified the Asuras. They hid the Vedas (which were in the form of babies) and escaped in fear . Hayagriva  thus retrieved the Vedas and gave it back to Brahama to start again.

 In Tibet, Hyagriva is one of the Dharmapalas who protect the teachings of Buddhis and the land of Tibet. His name means ‘horse-necked’.  He has a stocky human body and a horse’s head, although sometimes he is shown with a smaller horses’ head  above his own human one.  Other drawings show him with three horses’ heads, which is when he takes  the form of Krodha Atigyhya, the ‘Angry Highest Secret’.  In this form he carries a goad, a noose, a club and a sword together with lotus emblem and a skull.  Hyagriva or Tamdrin as he is also called , is the protector of the padma family of Buddhas and Bodhisattvas (those who refuse to enter Nirvana until all are enlightened.) He is seen as an emanation of Amitabha Buddha and is understood to embody the speed of all Buddhas.  His essence resides in the chanting of the syllable ‘hri’ which. Like the stallion’s whinny, is the sound that curs through illusion and reveals the nature of reality.  Hyagriva also protects horses.

The Element Encyclopedia of Magical Creatures: The Ultimate A-Z of Fantastic ...

By John Matthews, Caitlin Matthews

Tamdrin, Hayagriva, Horse-Throat
Emanation of Amitabha, dharmakaya of all the Buddhas of the Lotus family,
And emanation of Vajra Dharma and Chenrezi,
You are the body of great ferocity manifest from the syllable HRI:
Homage to Tamdrin with the horse's neigh