The Medicine Buddha mantra is held to be extremely powerful for healing of physical illnesses and purification of negative karma. One form of practice based on the Medicine Buddha is done when one is stricken by disease. The patient is to recite the long Medicine Buddha mantra 108 times over a glass of water. The water is now believed to be blessed by the power of the mantra and the blessing of the Medicine Buddha himself, and the patient is to drink the water. This practice is then repeated each day until the illness is cured.