In Sanskrit ‘Union of Force’, which signifies in yoga philosophy moon- (ha) or sun- (tha) oriented ascending or descending energy forces in the body. This school of Indian philosophy stresses mastery of the body as a way of attaining spiritual perfection. It is an outgrowth of the Yoga school of Indian philosophy. Hathayoga traces its origins to Gorakhnath, the legendary 12th-century founder of the Kanphata sect.