Scrying (also called crystal gazing, crystal seeing, seeing, or peeping) is a magic practice that involves seeing things psychically in a medium, usually for purposes of obtaining spiritual visions and more rarely for purposes of divination or fortune-telling. The media used are most commonly reflective, translucent, or luminescent substances such as crystals, stones, glass, mirrors, water, fire, or smoke. Scrying has been used in many cultures as a means of divining the past, present, or future. Depending on the culture and practice, the visions that come when one stares into the media are thought to come from God, spirits, the psychic mind, the devil, or the subconscious.

Although scrying is most commonly done with a crystal ball, you can also use any smooth surface, such as a bowl of liquid, a pond, a crystal, or, as expert scryers can, a thumbnail. Scrying is actively used by many cultures and belief systems and is not limited to one tradition or ideology. However, like other aspects of divination and parapsychology, it is not supported by mainstream science as a method of predicting the future or otherwise seeing events that are not physically observable.

 

Judaism and Christianity

Main article: Urim and Thummim

According to the Hebrew Bible, Urim and Thummim (Variously translated from Hebrew as "Revelation and Truth" or "Lights and Perfections".) were used as a divination process. Many scholars believe they were two or twelve crystals used for scrying, but there are also other interpretations. The earliest reference is in Exodus 28:30, when Aaron carried them with him as High Priest.

Deuteronomy 18:10-11 says, There shall not be found among you... one who uses divination, one who practices witchcraft, or one who interprets omens or a sorcerer, or one who casts a spell, or a medium, or a spiritist, or one who calls up the dead. Christianity is traditionally against all forms of divination, historically condemned by the Catholic church and some specific forms even forbidden under pain of excommunication.

Ancient Persia

Main article: Cup of Jamshid

The Shahnameh, a historical epic work written in the late 10th century, gives a description of what was called the Cup of Jamshid or Jaam-e Jam, used in pre-Islamic Persia, which was used by wizards and practitioners of the esoteric sciences for observing all the seven layers of the universe. The cup contained an elixir of immortality.

Mormonism

Main articles: Urim and Thummim and Seer stone (Latter Day Saints)

Joseph Smith, Jr., the founder of Mormonism and the Latter Day Saint movement, said he used two stones called the Urim and Thummim, in his 1829 translation of the Book of Mormon from the Golden Plates.

The Urim and Thummim is mentioned several times in the Old Testament as well as the Book of Mormon. In Mormon theology it is an instrument prepared by God that assists man in obtaining revelation and in translating languages.

In folklore