Metempsychosis

Metempsychosis is the belief that a person's soul can move from one living thing (like a human or animal) to another after they die. It's sort of like a game of 'musical chairs', where the soul is playing and never leaves the game! To some people, this means that even after humans die, their soul could come back in another form, like an animal or a plant. That's why some people believe that all living things have some sort of soul inside of them, since they all could have once been the soul of a person who lived a long time ago.