A prayer wheel is a cylindrical wheel, which uses solar energy to operate. The sacred chant Om Mani Padme Hum is written in Sanskrit on the wheel. It is believed to protect the owner from all kinds of danger and accidents and bless him or her with plenty of good luck, health, peace and harmony. Also known as the Mani cylinder or rolling prayer drum, it has many signs of the Vajra one of the powerful feng shui products representing wisdom and powers carved at the base. Positive energy, good vibes and many other good things are generated as the prayer wheel is spun.