In Norse Mythology, Odin is the ruler of all the Gods. He lives in Asgard and takes Viking warriors that have been slain in battle to the drinking hall known as Valhalla. His army of warriors drink and fight to prepare for Ragnarok, the end of the world.
The Valknut symbol is associated with the Norse God Odin and its meaning has been linked to life and the after-life. Its name comes from old Norse valr (slain warriors) + knut (knot).