Dowsing is a way putting your full brain to work. We have been conditioned to work with the left side or logical side of our brains, almost excluding the right or creative and intuitive side. Intuition occurs in the part of the brain that has no language. Dowsing can be thought of a co-processing of both sides of the brain.
Pendulums are one of the oldest and most popular forms of dowsing.
They are simple to learn and to work with. The dowser draws on the information in the collective unconscious and focuses that information to the pendulum in order to obtain responses to questions. With practice pendulums can be a wonderful tool to assist in gaining insight and information about yourself, a situation or another person. The hardest thing to learn is to clear your mind enough so that you focus on only the question at hand. It is important to use a pendulum in a quiet place where you can concentrate.