In Norse beliefs, Valhalla is a majestic hall where slain warriors, known as Einherjar, reside after death. It is ruled by Odin, the chief god, and is seen as a place of honor where heroes prepare for the final battle during Ragnarok. Valhalla represents ideals of bravery and valor, as warriors are welcomed based on their prowess in life. The hall's atmosphere of feasting and fighting reflects the Norse belief in glory and camaraderie among those who have died valiantly in battle.