Based on the principle that all things are in flux and nothing is permanent, it is believed that lives are destined to die out eventually and transmigrate to another world (or the same world) regardless of the world to which they transmigrated.
諸行無常の原則により、どの世界に生まれ変わろうとも何時かは死に絶え、別の世界（或いは同一世界）へ転生する宿命とされる。