Varaha was the third avatar of Vishnu, in the form of a black boar. Varaha is a word in the Sanskrit language that means a boar. The Hindu scriptures tell a story about this avatar. There was a demon (a "daitya") named Hiranyaksha. He threw the earth (called prithivi by the Hindus) into the waters of the ocean. The earth was about to sink in the ocean. At this point, Vishnu took the form of a black boar, entered the water and carried the earth on its body. Thus Vishnu, as Varaha, saved the earth from destruction.