From Bhagavata comes the story of Mahavishnu’s annihilation of the demon Hiranyakasha, brother of Hiranyakaspu. He carried the mother earth to the boom of ocean and challenged Vishnu to fight him and reclaim her. Mahavishnu came out of the nostrils of Brahma as a tiny little boar which soon grew into a gigantic form of Yagna Varaha dived to the depths of the ocean, killed the demon, reclaimed her and established her in all her pristine glory.