Metal pendulum helps in promoting spiritual and physical healing by locating any blocks in a person's chi (energy). It is a simple tool which helps in balancing, healing and clearing our mind and body. They help us seek answers to certain questions by picking on subtle vibrations. Pendulum, body suspended from a fixed point so that it can swing back and forth under the influence of gravity. Pendulums are used to regulate the movement of clocks because the interval of time for each complete oscillation, called the period, is constant. A pendulum is an object hung from a fixed point that swings back and forth under the action of gravity. In the example of the playground swing, the swing is supported by chains that are attached to fixed points at the top of the swing set.