Odin hanging from Yggdrasil.
In the Norse myth, in order to gain the knowledge of the runes, Odin makes a sacrifice of himself to himself. He is pierced by his own spear and hangs from the Tree of Life/Tree of the Worlds for 9 days and 9 nights.
This is my personal interpretation of that scene :) I was originally going to add the runes falling from the tree but I liked it how it was and didn't wanna mess it up :P
Graphite pencil art, scanned and colorized to yellow, contrast fixed. Not edited in any other way to preserve the original pencil look.