crystal gazing

crystal gazing, divination of distant or future events based on visions seen in a ball of rock crystal. Divination based on an analysis of reflections in water, on polished metal, or on precious stones was practiced by early humans, who probably interpreted these phenomena as a vision of the spirit world. Scrying became widespread by the 5th century ad and was condemned by the medieval Christian church as the work of the devil. Crystal gazing...