Berserkers (or berserks) were Norse warriors who are primarily reported in the Old Norse literature to have fought in a nearly uncontrollable, trance-like fury, a characteristic which later gave rise to the English word berserk. Berserkers are attested to
In Norse mythology, a Valkyrie is one of a host of female figures who decide who will die in battle. Selecting among those who die in battle, the Valkyries bring their chosen to the afterlife hall of the slain, Valhalla, ruled over by the God Odin.
"The Hanged Man" must hang on the cosmic tree for nine days and nine nights to receive a sublime revelation. He ascends the Tree to surrender to the streaming of cosmic currents through its leaves and branches.