In regard to Odin's speaking with Mimer's head, we have the following passage in the lay of Sigdrifa:
On the rock he[1] stood
With edged sword,
A helm on his head he bore.
Then spake Mimer's head
Its first wise word,
And true sayings uttered.
And in Völuspá, when Ragnarok is impending:
Mimer's sons dance,
But the central tree takes fire
At the resounding
Gjallarhorn,
Loud blows Heimdal,
His horn is raised;
Odin speaks
With Mimer's head.
Odin's eye is the sun. Mimer's fountain is the utmost sources of the ocean. Into it, Odin's eye, the sun sinks every evening to search the secrets of the deep, and every morning Mimer drinks the gold-brown mead (aurora). When the dawn colors the sea with crimson and scarlet, then Mimer's white fountain is changed to golden mead; it is then Mimer, the watcher of the fountain of knowledge, drinks with his golden horn the clear mead which flows over Odin's pledge. But Mimer means memory[2] (Anglo-Saxon meomor), and as we know that our ancestors paid deep reverence to the memories of the past, and that the fallen heroes, who enjoyed the happiness of Valhal with Odin, reveled in the memory of their deeds done on earth, it is proper to add that Mimer is an impersonation of memory. Our spirit (Odin, od, aand) sinks down into the depths of the
