Odin - After the runes
"The greatest of Gods,
God of war, God of knowledge,
Warrior, Shaman, Rune reader,
Poet, Hooded one,
The heart of the world,
"I trow I hung on that windy Tree
nine whole days and nights,
stabbed with a spear, offered to Odin,
myself to mine own self given,
high on that Tree of which none hath heard
from what roots it rises to heaven.
None refreshed me ever with food or drink,
I peered right down in the deep;
crying aloud I lifted the Runes
then back I fell from thence.
Hidden Runes shalt thou seek and interpreted signs,
many symbols of might and power,
by the great Singer painted, by the high Powers fashioned,
graved by the Utterer of gods."
Thus Odin graved ere the world began;
Then he rose from the deep, and came again.
From Hávamál - The Poetic Edda