A Buddhist prayer wheel is generally a hollow cylindrical wheel made from metal, wood, or stone, often beautifully embossed, mounted on a rod handle or axis made of wood or a precious metal. Simply, it is an inseparable part of the Tibetan and Buddhist tradition. Prayer wheels are known as Mani wheels in the Tibetan language. The Buddhist prayer wheels are used as an aid to meditation and as a means of accumulating wisdom, good karma, and means of putting bad karmas and negative energy aside.