1. in certain alternative therapies, a technique in which an individual is instructed to visualize significant experiences or produce associations while staring into a glass ball, light bulb, mirror, or other shiny or transparent object.

2. the occult practice in which a fortune teller or clairvoyant looks into a crystal ball to “see” visions of future or hidden events, usually in the life of a particular client. It is a form of scrying.