In Norse mythology, Valhalla is known as the great hall where slain warriors, known as Einherjar, reside after death. It is ruled by the god Odin and serves as a place of honor for warriors who died bravely in battle. Here, they feast and prepare for Ragnarök, the prophesied destruction and rebirth of the world. Valhalla thus symbolizes valor, camaraderie, and the warrior spirit, reflecting the values of Norse society.