Astral - (Latinastralis, astrum, star) - of or relating to a supersensible body (subtle body and plane of existence) believed by theosophists to coexist with and survive the death of the human physical body: an astral body.
Aura - Energy field emanating from the surface of a person or object. This emanation is visualized as an outline of cascading color and may be held to represent soul vibrations, chakric emergence, or a reflection of surrounding energy fields.
Delta - A state of mind is found when you are in a deep sleep. This is the state of mind that allows you to know who is calling when the phone rings.
Devil - A title given to the supernatural entity, who, in Christianity, Islam, and other religions, is a powerful, evil entity and the tempter of humankind. The Devil commands a force of lesser evil spirits, commonly known as demons.
Ghost - Manifestation of the spirit or soul of a dead person which has remained on Earth after death. HUMAN ONLY!
Occult - 'knowledge of the paranormal'. For most practicing occultists it is simply the study of a deeper spiritual "reality" that extends beyond pure reason and the physical sciences.
Reiki - Technique for stress reduction and relaxation that also promotes healing. It is administered by "laying on hands" and is based on the idea that an unseen "life force energy" flows through us and is what causes us to be alive. If one's "life force energy" is low, then we are more likely to get sick or feel stress, and if it is high, we are more capable of being happy and healthy.