In Norse myths, Ragnarok represents the prophesied end of the world, marking a series of cataclysmic events that reveal the cyclical nature of existence. This apocalyptic scenario includes battles among gods, giants, and monsters, leading to the death of many deities, including Odin and Thor. Despite the destruction, Ragnarok also signals a rebirth, as the world is foretold to be repopulated by survivors. The narrative encapsulates themes of fate, heroism, and the inevitability of change, illustrating how endings foster new beginnings within Norse cosmology.