Sūta said: The worlds bhūr, bhuvaḥ, svar and mahar perish; only the worlds above remain intact. At night, when the mobile and immobile perish and a vast sheet of water[5] spreads like a single ocean, Brahmā goes to sleep in the water. He is therefore known as Nārāyaṇa. At the end of the night he wakes up and beholds a void what used to be the world of mobile and immobile beings. Then he, the most excellent among the knowers of Brahman decides to create. He assumes the form of a boar[6] and lifts the earth submerged in the waters. He lifts it up and places it as before, together with all the rivers, rivulets and oceans.