A SatyaYuga Avatar
When the demon Hiranyaksha stole the earth (goddess Bhudevi) and hid her in the primordial waters, Vishnu appeared as Varaha to rescue her. The battle between Varaha and Hiranyaksha is believed to have lasted for a thousand years. Varaha finally slew the demon and retrieved the Earth from the ocean, lifting it on his tusks, and restored Bhudevi to her place in the universe.
In the Vishnu Purana, Varaha represents yajna (sacrifice), as the eternal upholder of the earth. His feet represent the Vedas (scriptures). His tusks represent sacrificial stakes. His teeth are offerings. His mouth is the altar with tongue of sacrificial fire. The hair on his head denotes the sacrificial grass. The eyes represent the day and the night. His coarse hair represents sexual prowess. The head represents the seat of the Brahmin (priest). The mane represents the hymns of the Vedas. His nostrils are for oblation. His joints represent the various ceremonies. The ears are said to indicate rites (voluntary and obligatory). Thus, Varaha is the embodiment of the Supreme Being who brings order amidst chaos in the world by his sacrifice