Mystic Eye, as proclaimed by its inventors, 'can be used for games, parties, self-analysis, psychoanalysis. . . as a Lie Detector [...]. [It] responds to the subconscious, the conscious, and the superconscious mind!!!' Unlike the Ouija board with its seance associations, Barker and Greene (the Mystic Eye designers) primarily claimed an association between the game equipment and the mind of the participant. In Mystic Eye, the querant suspends a pendulum over the board and asks his/her questions. The motion of the pendulum carries it over a dial containing 'Yes', 'No', numbers and months to provide an answer. - BoardGameGeek