In Norse cosmology, the event known as Ragnarok marks the end of the world, entailing a catastrophic battle between the gods, giants, and various creatures. This prophecy foretells the death of significant deities like Odin, Thor, and Loki, ushering in a period of chaos. Following this destruction, a rebirth of the world is anticipated, symbolizing cycles of death and renewal. Ragnarok illustrates profound themes of fate, sacrifice, and the inevitable nature of change within Norse beliefs.