Once this exchange was accomplished, Odin decided to put himself through a terrible ordeal, and for nine days and nights hung from the world tree, Yggdrasil. Odin's Rune Song, dated between the s and s, tells of how Odin hung himself on the great World Tree, Yggdrasil (“ Odin's Horse”), as a sacrifice to. Odin on the Tree. Sundown. Lauren as Odin. Light flick, leaf flash. Words well, wonder Light flick, leaf flash, Words well, wonder I wonder what wisdom I.