"Vedic god representing both the sacrificial boar and the phallus. His name meant "he who embraces, pervades, or penetrates"; he was known as "the expander," and "he who excites men." His emblem was a lingam-yoni composed of a male cross with a female circle called the sign Kiakra: "When held by Vishnu, it signified his power to penetrate heaven and earth."

Vishnu insisted that his flesh and blood, poured out on the sacrificial altar, preserved the whole world, creatures and gods alike. When he transformed himself into the boar, he became the Universal Savior. For the sake of the world he gave himself up to death, and was sacrificed by "gods saying Om."

The boar's tusk was identified with his phallus, because it was the tusk that effected Vishnu's mating with the primal Goddess Earth; "He uprose bearing on his tusk the fair goddess Earth, shedding in all directions the brine of the cosmic sea." Boars' tusks often represented phalli in Oceanic and Far-Eastern cultures.

The Woman's Encyclopedia of Myths and Secrets p 1052.