Guðmundr of the sheaf in Norwegian Yule celebrations. According to "Hervarar saga ok Heiðreks", the Norwegians came to see Guðmundr as a god; Höfler argued that in both the wolf-form suggested by "Úlfhéðinn" and the horse-form suggested by "faxi", Guðmundr was a death-demon and his death-horse the prototype of the death-horse Sleipnir portrayed on the Gotland picture stones. Ingemar Nordgren regards the first Guðmundr as "a cult-god" and his son, the Guðmundr of the sagas, as portraying him in theriomorphic form, and suggests that he is either an earlier fertility god who came to be identified with Óðinn and that Glæsisvellir
White horse (mythology) As part of its legendary dimension, the white horse in myth may be depicted with seven heads (Uchaishravas) or eight feet (Sleipnir), sometimes in groups or singly. There are also white horses which are divinatory, who prophesy or warn of danger. As a rare or distinguished symbol, a white horse typically bears the hero- or god-figure in ceremonial roles or in triumph over negative forces. Herodotus reported that white horses were held as sacred animals in the Achaemenid court of Xerxes the Great (ruled 486–465 BC), while in other traditions the reverse happens when it was sacrificed to the gods.