Ṣaṭkarma: The Six Purifications Across the Classical Texts

“If there is excess mucus, or if it has disappeared, then prāṇāyāma ruins the body. Purification must be done first.” — HP 2.21 [[hatha-pradipika/2-21]]

Ṣaṭkarma (षट्कर्म, “the six actions”) is the set of bodily purification techniques that form the foundation of haṭha yoga practice. Unlike other yoga disciplines, the haṭha tradition holds that the body must be cleansed before prāṇa can move freely through the subtle channels. The controversy lies in that some masters consider ṣaṭkarma indispensable, while others, Patañjali — omit these practices entirely.

The Six Practices

The system encompasses six cleansings that purify the organs and channels of the body:

Practice	Function	Region
Dhauti	Cleansing of the digestive tract	Stomach/esophagus
Basti	Colonic irrigation	Large intestine
Neti	Nasal cleansing	Nasal cavities
Trāṭaka	Visual fixation	Eyes/mind
Naulī	Abdominal massage	Digestive organs
Kapālabhāti	Cranial cleansing	Sinuses/forehead

Each one acts upon a particular doṣa, balancing physiology and preparing the yogi for the regulation of prāṇa.

Haṭha Yoga Pradīpikā: Foundation and Caution

Svātmārāma dedicates the second chapter to these practices, opening with a critical warning: purification is a necessary condition for prāṇāyāma, but only when there is imbalance. If the body is healthy and the nāḍīs clean, ṣaṭkarma may be omitted.

Dhauti: The Upper Cleansing

The HP describes four main forms of dhauti:

Antardhauti — “internal dhauti” — includes four techniques that cleanse from the stomach to the esophagus. The best known, dantadhauti (tongue cleansing), removes the mucous coating of the tongue so that the soft palate does not interfere with breath retention [[hatha-pradipika/2-24]].

Vārisāra dhauti (also called śaṅkha prakṣālanā) consumes large amounts of salted water and expels it through the anus, cleaning the entire digestive tract. The HP describes it succinctly; the Gheraṇḍa Saṃhitā details it with greater depth.

Vahnisāra dhauti or agnisāra — “stroking the fire” — consists of abdominal vacuum, where the ribs compress toward the spine while the abdomen sinks. “The fire of the stomach, when stroked by air, blazes up” [[hatha-pradipika/2-31]].

Vahir dhauti — “external dhauti” — involves sucking water through the anus to cleanse the large intestine.

Basti: The Irrigation

“As a dirty pot, when rubbed with water, becomes clean, so the large intestine is purified by basti.” — HP 2.27 [[hatha-pradipika/2-27]]

The HP distinguishes śikhā and jala basti: the former is practiced in air (sucking air through the anus with the body in cīnāsana), the latter in water (introducing water into the colon to expel impurities). Both require certain preliminary āsanas: ardha matsyendrāsana and paschimottānāsana.

Neti: The Nasal Cleansing

“A cotton thread, ten inches long, should be passed through the nose… and come out through the mouth.” — HP 2.30 [[hatha-pradipika/2-30]]

The sūtra neti — passing a fine cord through the nostrils — eliminates secretions and unblocks the channels for the practice of prāṇāyāma and jālandhara bandha. The immediate result is improved vision and reduced fever.

Trāṭaka: The Unblinking Fixation

“Gazing fixedly without blinking, until tears fall… that is trāṭaka, destroyer of all eye diseases.” — HP 2.32 [[hatha-pradipika/2-32]]

Although classified as ṣaṭkarma, trāṭaka is also a gateway to dṛṣṭi (fixation of gaze in āsana) and dhyāna. The practice consists of contemplating a small object (a candle, a black dot) without blinking until the eyes water. It purifies the eyes physically and trains mental attention.

Naulī: The Abdominal Massage

“Moving the rectus abdominis from side to side, like the waves of the ocean, that is naulī…” — HP 2.33 [[hatha-pradipika/2-33]]

The text describes an abdominal undulation technique that demands prior mastery of uḍḍiyāna bandha (the “flying lock” that raises the diaphragm). The movement massages the internal organs, stimulates the digestive fire, and balances the doṣas. The HP describes it with greater detail than other texts.

Kapālabhāti: The Cranial Cleansing

“The forced exhalation of vāyu through the nose is kapālabhāti… destroyer of the doṣas of the cranium.” — HP 2.35 [[hatha-pradipika/2-35]]

Unlike other techniques that retain the breath, kapālabhāti emphasizes vigorous exhalation — “like the blacksmith blows his bellows” — to purify the frontal sinuses and the upper respiratory tract. The HP presents it as kriyā (action), while the Gheraṇḍa Saṃhitā incorporates it into the nāḍī-śuddhi system.

“Having purified the body by the practices of ṣaṭkarma, the yogi should practice prāṇāyāma. Otherwise, not being purified, he will not succeed.” — HP 2.36 [[hatha-pradipika/2-36]]

Gheraṇḍa Saṃhitā: The System of Seven Instruments

The Gheraṇḍa Saṃhitā elevates ṣaṭkarma to an exhaustive system of dvādaśa dhauti (twelve cleansings), organized into four categories. It is the most detailed text on bodily purificatory practices.

Dhauti: Twelve Forms

“By the six karmas the body must be purified. Then the attainment of yoga arises.” — GS 1.5 [[gheranda-samhita/1-05]]

The first chapter dedicates forty-six verses to the twelve dhautis:

Vārisāra (consuming water and expelling it)
Vahnisāra (agnisāra kriyā, the abdominal vacuum)
Vahir (sūtra neti, nasal cord)
Dantadhauti (cleansing of teeth, tongue, ears)
Kaṇṭha (vomiting salt water)
Hṛd (vomiting with yam roots)
Mūla-śodhana (rectal cleansing with roots)
Naulī (abdominal undulation)
Kapālabhāti (forced exhalation)
Trāṭaka (ocular fixation)
Neti (jala neti with salt water)
Gaja karṇa (ear cleansing)

The expansion from four to twelve practices reflects the text’s extreme purificatory orientation. Gheraṇḍa not only describes what to do, but with what: roots, wires, water, salt, honey. Folk medicine and yoga intertwine.

Kapālabhāti as Nāḍī-Śuddhi

Unlike the HP, which presents kapālabhāti as cranial purification, the GS includes it within the channel-cleansing system:

“The tears that flow from the eyes by trāṭaka destroy all diseases of the eyes.” — GS 1.53 [[gheranda-samhita/1-53]]

Trāṭaka appears here not only as ocular cleansing but as preparation for concentration: “The yogi who contemplates the inner light obtains clairvoyance.”

Naulī and the Manipulation of Vāyu

“Rotating the abdomen from left to right and vice versa, the yogi should practice naulī.” — GS 1.48 [[gheranda-samhita/1-48]]

The GS adds a variant: naulī can be practiced seated or standing, with the hands resting on the thighs, alternately pressing the abdomen.

Śivasaṃhitā: Medical-Spiritual Perspective

The Śivasaṃhitā addresses ṣaṭkarma with less extension than the previous texts, but with a vision that integrates physiology with cosmology.

“Mucus, bile, and wind are the three doṣas… When balanced, the body is healthy; when imbalanced, diseases arise.” — ŚS 3.26 [[shiva-samhita/3-26]]

The Sūtra Neti in Śaiva Perspective

“The cord that passes through the nose purifies the channels and leads to the vision of the third eye.” — ŚS 3.28 [[shiva-samhita/3-28]]

The Śivasaṃhitā does not describe ṣaṭkarma technically; it presents it as remedy within a broader medical system. The yogi who practices cleansings purifies the subtle body, allowing the kuṇḍalinī to ascend without obstructions.

Dhauti and the Cakra System

The text connects each purification with a cakra:

Neti → ājñā (third eye)
Dhauti → maṇipūra (solar plexus)
Basti → svādhiṣṭhāna (sacral plexus)
Naulī → maṇipūra (digestive fire)

This correspondence, absent in the HP, reflects the tāntric cosmology of the Śivasaṃhitā: the body is a map of the universe, and each purification affects a particular energy center.

Convergences

1. Prerequisite for Prāṇāyāma All three texts agree: bodily purifications precede breath control. The HP states it explicitly; the GS extends it to twelve forms; the ŚS integrates it into the cosmology of channels.

2. Mucus as Central Obstacle Kapha (mucus) is the common enemy. Neti, dhauti, and kapālabhāti combat it from different anatomical regions. HP 2.21 establishes the rule: excess kapha → purify first; absence of kapha → ṣaṭkarma unnecessary.

3. Body Autonomy Unlike Patañjali, where the body is merely a seat for the mind, the haṭha texts see the body as an instrument that must be tuned. Purification is not asceticism; it is physiological engineering.

4. Implicit Contraindications Although no ancient text enumerates modern contraindications, the logic is clear: if there is no excess kapha, do not purify. If the channels are clean, proceed directly to prāṇāyāma.

Divergences

Aspect	Haṭha Yoga Pradīpikā	Gheraṇḍa Saṃhitā	Śivasaṃhitā
Number of practices	Six (HP 2.21-35)	Twelve dhautis (GS 1.12-57)	Generalized mention
Technical focus	Moderate, balanced	Exhaustive, almost manual	Cosmological-medical
Relation to cakras	Absent	Minimal	Central (ŚS 3.26-34)
Purpose	Prepare prāṇāyāma	Purify completely	Ascent of kuṇḍalinī
Materials	Cotton, water, salt	Roots, wires, honey	Not specified
Trāṭaka	Ocular purification	Clairvoyance, dhyāna	Vision of third eye

Integrated Synthesis: When and Why to Practice

When is it necessary?

The HP rule remains valid: ṣaṭkarma is practiced when there is doṣa imbalance, especially accumulation of kapha. In a healthy body with clean nāḍīs, these practices may be omitted without loss of prāṇāyāma effectiveness.

Signs of kapha accumulation include:

Persistent nasal congestion
Excess stomach mucus (detectable as thick white tongue coating)
Sensation of digestive heaviness
Difficulty retaining breath in prāṇāyāma

Contraindications and Precautions

Dhauti (vamana): Do not practice with gastric ulcer, hiatal hernia, malnutrition, or pregnancy.

Basti: Contraindicated in ulcerative colitis, anal fistulas, active hemorrhoids, recent abdominal surgery.

Neti (sūtra): Requires initial supervision. Do not use with acute sinusitis, frequent epistaxis, or severe septal deviation.

Trāṭaka: Avoid with glaucoma, retinopathy, severe migraine, or schizophrenia.

Naulī: Contraindicated in pregnancy, hernia, peptic ulcer, recent abdominal surgery.

Kapālabhāti: Do not practice with uncontrolled hypertension, epilepsy, hiatal hernia, or pregnancy.

Sequence and Progression

The texts suggest an implicit order:

Neti → clear upper respiratory passages
Dhauti → cleanse upper digestive tract
Naulī → activate digestive fire
Basti → cleanse lower tract
Kapālabhāti → purify sinuses and forehead
Trāṭaka → train attention

This sequence — top to bottom, external to internal — prepares the body for seated prāṇāyāma and meditation practice.

Ṣaṭkarma in the Modern Era

The practices have been adapted: jala neti with ceramic pots, śaṅkha prakṣālanā with isotonic salt water, agnisāra as therapeutic exercise for diastasis recti. Yet the principle remains: the body is the field of action, and its purity determines the effectiveness of subtle practices.

The haṭha tradition does not ask that the body be tortured; it asks that it be understood. The purifications are not ends in themselves — they are preparations. The ultimate goal, from the HP to the ŚS, is the same: to still the mind, reveal consciousness, liberate the being.

To explore each technique in depth, see [[glosario/shatkarma]] and the individual entries for dhauti, basti, neti, trāṭaka, naulī, and kapālabhāti.

Ṣaṭkarma: The Six Purifications