The Shatkarmas (Sanskrit: षटकर्म ṣaṭkarma, literally six actions), also known as Shatkriyas, are a set of Yogic purifications of the body, to prepare for the main work of yoga towards moksha (liberation). These practices, outlined by Yogi Swatmarama in the Haṭha Yoga Pradīpikā as kriya, are Netī, Dhautī, Naulī, Basti, Kapālabhātī, and Trāṭaka. The Haṭha Ratnavali mentions two additional purifications, Cakri and Gajakarani, criticising the Hatha Yoga Pradipika for only describing the other six.
The shatkarmas are six (or more) preliminary purifications described in the Hatha Yoga Pradipika and later texts. Their purpose is to remove "gross impurities", cure a range of diseases, and prepare the body for pranayama, trapping the breath so as to force the vital energy prana into the central sushumna channel, allowing kundalini to rise, and so to attain moksha, liberation.
The six purifications taught in the Hatha Yoga Pradipika, and repeated in the Gheranda Samhita, are:
- Netī is a nasal wash. This is the practice of using a neti pot to cleanse the nasal passages. A basic neti wash consists of purified water and non-iodized salt, to create a gentle saline solution.
- Dhautī is the cleansing of the whole digestive tract.
- Naulī is a self-administered abdominal massage, using only the muscles of the abdominal wall. The practitioner stands with the feet about hip width apart, hands on knees, and body at about a 45 degree angle. The core is rotated internally by moving the abdominal muscles alternately in a clock-wise, then in a counterclock-wise direction.
- Basti is a colonic irrigation.
- Kapālabhātī is a skull polishing, and is a pranayama (breathing) practice intended to energize and balance the nadis, and the chakras. Specifically, it is a sharp, short outbreath, followed by a relaxation of the core that allows the body to inhale on its own.
- Trāṭaka is the direction of the gaze at a fixed point such as a black spot or a candle flame.
The two additional purifications in the Hatha Ratnavali are:
- Mallinson, James; Singleton, Mark (2017). Roots of Yoga. Penguin Books. pp. xxviii–xxxii, 46, 49–50, 71–79. ISBN 978-0-241-25304-5. OCLC 928480104.
- Shatkarmas - Cleansing Techniques, in Yoga Magazine, a publication of Bihar School of Yoga
- Muktibodhananda, Swami. (1985). Hatha Yoga Pradipika. New Delhi India: Thomson Press India, for The Yoga Publications Trust.
- These techniques and their practice are outlined in considerable detail by Swami Rama in his two volume set:
Rama, Swami. (1988). Path of Fire and Light, Volume I: Advanced Practices of Yoga; Volume II: A Practical Companion to Volume I. Honesdale, Pennsylvania. Himalayan Institute Press.