In Norse beliefs, Valhalla refers to the majestic hall where slain warriors, or Einherjar, are taken after death. It is ruled by the god Odin and serves as the ultimate reward for valor in battle. In Valhalla, these warriors feast and prepare for Ragnarok, the end of the world. The concept embodies ideals of bravery, honor, and the warrior's afterlife, illustrating the Norse emphasis on valor in conflict.