The soul is the non-physical, eternal essence of a person, separate from the body and generally considered to carry a person's true identity beyond physical life. Across most spiritual traditions, the soul is what's believed to continue after death, whether through reincarnation, an afterlife, or some form of ongoing existence.

Many psychic and spiritual concepts rest on this underlying idea of the soul: past lives, karma, twin flames, and soulmates all describe how a soul is believed to grow, connect, or evolve across time.