The hatha yoga cleansing processes have been placed into six groups of purification practices known as shatkarmas, ‘Shat’ meaning six and ‘karma’ meaning action. They are described in the ancient texts of the Hatha Yoga Pradipika and Gherand Samhita. The six shatkarmas are neti, cleansing of the nasal passages, dhouti, cleansing of the alimentary canal, nauli, strengthening of the abdominal organs, basti, cleansing of the large intestine, kapalbhati, cleansing of the frontal area of the brain an