| − | A crystal ball is a large sphere of glass used in divination. The practicioner stares into the ball until images appear in it. It is the most popular form of 'scrying', but other implements can be used instead such as a mirror. | + | A crystal ball is a large sphere of glass used in divination. The practitioner stares into the ball until images appear in it. It is the most popular form of 'scrying', but other implements can be used instead such as a mirror. |