I want to learn the pendulum.

Crystal pendulum is only a prop for divination, and it won't provoke some strange things. Please rest assured to learn and use it. Many things can be made into pendulums, but crystals have the best conductivity, so more people will choose. Divination depends on the subconscious mind, and the so-called "psionic power" is just another way of saying the sixth sense. There can be no such thing as "injecting psionic energy into the crystal". People with strong divination ability have better perception ability and are more likely to come into contact with strange things. Therefore, it is not recommended to practice in places that are dissatisfied with the sun, such as hospital cemeteries, not because "crystals will attract strange things."