Spiritualism is a belief system that focuses on the ability to communicate with spirits of the dead. A CLAIRVOYANT is someone who has the ability to perceive events in the future or distant places, while a MEDIUM is someone who can communicate with spirits of the deceased. A MYSTIC is someone who seeks spiritual truth through direct experience, and a PSYCHIC is someone who has the ability to perceive information hidden from the senses. All of these terms are related to spiritualism and refer to people who have special abilities to connect with the spiritual world.