Odin is the most complex and most interesting figure in Norse mythology — the All-Father who is simultaneously a god of war, wisdom, poetry, death, magic and shamanic practice. What makes Odin remarkable is his willingness to sacrifice himself to gain knowledge: he hung on Yggdrasil for nine days and nights, pierced by his own spear, to discover the runes; he sacrificed one eye to drink from Mimir's well of wisdom; he uses seiðr — a form of shamanic magic associated primarily with women — despite the social stigma attached to its practice by men.
The runes he discovered are not merely an alphabet — they are forces of the cosmos that can be worked with through carving, chanting, meditation and understanding of their principles. Each of the 24 runes in the Elder Futhark encodes a specific cosmic principle, and the skilled practitioner can work with these principles both for divination and for influencing events.