Animal symbolism and mythology. Book II

"The hog, as well as the wild boar, is another disguise of the solar hero in the night—another of the forms very often assumed by the sun, as a mythical hero, in the darkness or clouds. He adopts this form in order sometimes to hide himself from his persecutors, sometimes to exterminate them, and sometimes on account of a divine or demoniacal malediction. This form is sometimes a dark and demoniacal guise assumed by the hero; on which account the poem of Hyndla, in the Edda calls the hog a ...