Huginn + Muninn

huginn and muninn double raven norse symbol, viking spiritual symbol
It is said, that in Norse Mythology, Huginn and Muninn are a pair of ravens that fly all over the world and act as the God Odins eyes, bringing him back information.
"In the Poetic Edda, a disguised Odin expresses that he fears that they may not return from their daily flights. The Prose Eddaexplains that Odin is referred to as "raven-god" due to his association with Huginn and Muninn. In the Prose Edda and the Third Grammatical Treatise, the two ravens are described as perching on Odin's shoulders. Heimskringla details that Odin gave Huginn and Muninn the ability to speak."

“Huginn and Muninn.” Wikipedia, Wikimedia Foundation, 3 July 2018,"

There are many theories as to what Huginn & Muninn represent. Their main role was to serve the God Odin with information, with Huginn thought to be the "mind", and Muninn, the "memory". However, Odin also had two wolves that served him, and the combination of the God, Wolves and Ravens, provokes the theory and symbolism of the human organism, with different parts playing their individual role within the "whole". Each part having their weaknesses and strengths"