In Norse mythology, the event known as Ragnarok signifies the end of the world and the ultimate battle between gods and titans. This cataclysmic event is marked by a series of natural disasters, the death of several major gods, including Odin and Thor, and the submergence of the world in water. Following Ragnarok, the earth is prophesied to rise anew, signaling rebirth and renewal, which reflects the cyclical nature of life in Norse beliefs.