Quite simply, a pendulum react to your subconscious mind. When held properly, the pendulum will react to very small nerve reactions in your fingers that are generated by your unconscious mind in response to a question poised. Wearing, carrying or meditating with a Clear Quartz crystal opens the mind and heart to higher guidance, allowing the realm of Spirit to be transmitted and translated into the world of physical form. Amethyst is natures tranquilizer, calming and soothing, assisting in the transmission of neural signals through the brain. It relieves obsessive compulsive disorder and hyperactivity.