What is the the term used to describe the belief that people pass through many lives called?

The term used to describe the belief that people pass through many lives is "reincarnation." This concept is found in various religious and philosophical traditions, notably in Hinduism and Buddhism, where it is believed that the soul is reborn into new bodies based on past actions (karma). Reincarnation suggests a continuous cycle of birth, death, and rebirth until spiritual liberation is achieved.