Bandhas and Mudras -- Locks and Seals as a Working System

The article on this site covering the Hatha Yoga Pradipika already summarises its third chapter, ten mudras in total, from Mahamudra to Shakti Chalana, and the article on mudras in ritual and yoga already covers the hand-gesture sense of the word, gyan mudra, anjali mudra, and the rest, at some length. Neither article stops to work through a specific problem that any careful reader of the Hatha Yoga Pradipika eventually runs into: the text calls Mula Bandha, Uddiyana Bandha, and Jalandhara Bandha mudras. Not bandhas that happen to appear in a chapter about mudras. The chapter heading itself, and the closing verse of the chapter, list them as three of the ten mudras it teaches. This is not a translation error and not a modern confusion layered onto a clean ancient distinction. Bandha, a bind or a lock, and mudra, a seal, were never kept in perfectly separate boxes by the tradition that produced this text, and pretending otherwise would misrepresent the source rather than clarify it. This article's job is narrow: explain what a bandha actually does physically and energetically, how the three principal bandhas combine into what the text calls Maha Bandha, and where the Hatha Yoga Pradipika's own vocabulary genuinely overlaps and genuinely diverges from the sense of mudra covered elsewhere on this site.

Bandha comes from the Sanskrit root bandh, to bind, and in the Hatha Yoga context it names a deliberate muscular contraction held at a specific point along the trunk, applied during breath retention, that the tradition says redirects prana rather than simply moving muscle. The Hatha Yoga Pradipika and the Gheranda Samhita both describe three principal bandhas, located at the base of the trunk, the abdomen, and the throat. Mula Bandha contracts the region of the perineum, described in the text as pressing the heel against that area and drawing the rectum inward and upward, with the stated aim of reversing the downward flow of apana vayu, the outward and eliminative current of breath, so that it moves upward to meet prana instead of dissipating. Uddiyana Bandha, the verse quoted above, draws the abdominal wall above the navel back toward the spine and lifts it, performed after a full exhalation and during breath retention rather than as an isolated abdominal exercise. Jalandhara Bandha lowers the chin toward the sternum while lengthening the back of the neck, described in the text as constricting the network of nadis that would otherwise let the nectar generated higher in the body fall and be consumed by the digestive fire before it can nourish the practitioner. Each of the three is described as a genuine physical action with a genuine physical location, not a purely visualised or symbolic gesture, and each carries a stated energetic function beyond its mechanical description. None of these three should be attempted from a written description alone, particularly Uddiyana Bandha and any combination performed during extended retention, and the practice-link at the end of this article says more about why.

The three bandhas are rarely taught in isolation for long. Both the Hatha Yoga Pradipika and the Gheranda Samhita describe combining all three during a single breath retention as Maha Bandha, the great lock, and the prescribed order matters: Mula Bandha is applied first at the base, then Uddiyana Bandha at the abdomen, then Jalandhara Bandha at the throat, sealing the breath along the entire trunk from bottom to top before the practitioner exhales. The Hatha Yoga Pradipika goes one step further and describes Maha Vedha, the great piercing, as Maha Bandha performed while seated in a specific posture and combined with a light, controlled dropping of the body's weight onto the sitting bones, intended to drive the sealed prana more forcefully through the point of obstruction the article on the three granthis on this site describes in detail. That article's comparison table already lays out the traditional, later-layered correspondence between each bandha and the granthi it is said to help loosen, Mula Bandha with Brahma granthi at the base, Uddiyana Bandha with Vishnu granthi at the heart, Jalandhara Bandha with Rudra granthi at the eyebrow centre, and this article does not repeat that table rather than duplicate it. What matters here is the mechanical logic of the sequence: each bandha does not act as an isolated muscular clench so much as a stage in a single continuous seal, applied bottom to top, held for the duration of one retention, and released top to bottom in the same order it was built, throat first, then abdomen, then the base.

Why does the text call a muscular lock a seal at all? The most defensible reading, and the one this article commits to rather than hedging on, is that mudra in this chapter means something closer to its literal sense of a seal or a stamp than to a hand gesture: an action that closes a circuit and holds a particular state in place for as long as it is applied, the way a wax seal holds a letter shut. A bandha closes the body's own circuit in exactly this sense, it binds prana into a contained space rather than letting it disperse, which is why the text is comfortable calling the same action a bandha in one line and a mudra in the next without treating this as a contradiction. The popular hasta mudra, the thumb and forefinger touching in meditation, works on a related but distinct principle: it closes a much smaller, much gentler circuit through the hand alone rather than locking the entire trunk during forceful breath retention. Both are called mudra because both seal something, but the scale, the physical intensity, and the traditional level of supervision required are not remotely equivalent, and a reader who has learned gyan mudra from a meditation app should not assume the same casual approach applies to Uddiyana Bandha or Maha Vedha.