Shatkarma -- The Six Purification Practices

The article on this site covering the Hatha Yoga Pradipika already names the six shatkarmas in passing, in a single sentence inside a much wider survey of the text's four chapters, because no honest account of that text can skip past them entirely. That sentence is not an explanation. Shatkarma, six actions, is the collective name for a set of physical cleansing techniques that the Hatha Yoga Pradipika places at the start of its second chapter, before pranayama, and that the Gheranda Samhita develops in far greater technical detail across the opening chapter of its own seven-chapter structure. Dhauti, Basti, Neti, Nauli, Trataka, and Kapalabhati are not vague purification metaphors. Each is a specific, physical, repeatable technique aimed at a specific organ system, several of them startling to a reader encountering them for the first time, and this article's job is to describe what each one genuinely involves and what the tradition claims about its effects, honestly and specifically, without converting any of them into step-by-step instructions a reader might attempt alone. Some of these practices carry real physical risk if performed incorrectly, and the tradition itself, as the next section shows, does not present them as a compulsory routine for every practitioner in the first place.

Immediately after naming the six, the Hatha Yoga Pradipika limits who they are for. Verse 2.21 states that shatkarma should be undertaken by a practitioner in whom fat or mucus is in excess, prior to beginning pranayama, and that a practitioner whose three doshas, vata, pitta, and kapha, are already in reasonable balance has no need to perform them. This is not a minor caveat tucked away in a footnote. It is the text's own framing, placed before the techniques are even described, and it means shatkarma was never presented as a mandatory daily routine for every yoga practitioner regardless of constitution. The Gheranda Samhita, composed later and organised differently, treats the six as the first of seven successive stages of what it calls Ghatastha Yoga, purification, strength, steadiness, calmness, spiritual perception, detachment, and finally samadhi, and gives dhauti in particular a far more elaborate subdivision than the Hatha Yoga Pradipika attempts. Reading the two texts together rather than treating either as the single authority shows a real difference in scope and emphasis: Svatmarama moves through all six in roughly a dozen verses before turning to pranayama, while the Gheranda Samhita spends nearly fifty verses on the same six actions, breaking dhauti alone into more than a dozen named sub-techniques.

Dhauti, cleansing, is the broadest category and the one the Gheranda Samhita subdivides most. Antar Dhauti, internal cleansing, covers four sub-practices: Vatasara, drawing air in through the mouth and expelling it through the anus; Varisara, drinking a substantial quantity of water and passing it through the digestive tract; Agnisara, or Vahnisara, a rapid, repeated contraction and expansion of the abdominal wall against the spine; and Bahishkrita, a more advanced washing of the lower rectum. Danta Dhauti covers cleansing of the teeth, gums, tongue, and ears. Hrid Dhauti, cleansing of the upper digestive passage, includes Vamana Dhauti, deliberately induced regurgitation of the stomach's contents, and the practice most likely to startle a modern reader, Vastra Dhauti, in which a long, thin strip of clean, damp cloth is slowly swallowed and then withdrawn. Basti is a cleansing of the lower intestine and bladder, traditionally performed by drawing water or air up through the rectum while seated in a specific posture in shallow water, functioning as a kind of self-administered internal wash quite unlike the Sanskrit medical term basti found in Ayurveda, though the two share a root idea of introducing a substance through the lower passage for a cleansing or therapeutic purpose. None of these four, Dhauti in its several forms and Basti, are practices this article describes so that a reader can attempt them from the page. Both texts assume a living teacher standing beside the practitioner, correcting technique in real time, and Vastra Dhauti in particular carries a real risk of injury to the throat or airway if the cloth is handled incorrectly.

Neti, nasal cleansing, is probably the shatkarma most familiar to a modern reader because a simplified version of it has entered ordinary wellness culture as nasal irrigation. The classical texts describe two forms. Jala Neti passes water through one nostril and out through the other, or out through the mouth, using a controlled, gentle stream. Sutra Neti passes a thin, smoothed cord or waxed thread through the nostril and out through the mouth, drawing it back and forth to clear the passage, a technique that carries genuine risk of injury to the delicate nasal lining if the cord is not properly prepared or the movement is forced. Nauli is an abdominal churning technique in which the practitioner, having emptied the lungs, isolates and rolls the central abdominal muscles from side to side, a skill that Hatha Yoga texts rank among the more physically demanding of the six and that typically takes sustained practice under a teacher's eye to develop safely, since attempting the isolation incorrectly produces no useful effect and can strain the abdominal wall. Trataka is steady, unblinking gazing at a fixed point, most commonly a small flame, held until the eyes water, followed by closing the eyes and holding the after-image in the mind's eye; of the six, it is the gentlest and the one most safely approached without close supervision, though even Trataka should be stopped if it produces headache or eye strain rather than pushed through. Kapalabhati, skull-shining breath, is a rapid, forceful series of short exhalations driven by a sharp contraction of the lower abdomen, with passive inhalation between each, distinct from the slower, more sustained retention-based pranayama techniques covered elsewhere on this site and generally taught as a shatkarma precisely because its aim is cleansing the breath passages and sinuses rather than the deeper pranic work of formal pranayama.