With that established, pranayama is the interruption of the flow of inhalation and exhalation.

The verse

Tasmin sati śvāsa-praśvāsayor gati-vicchedaḥ prāṇāyāmaḥ — "with that established, pranayama is the cutting off of the movement of inhalation and exhalation." Two things in this sutra deserve close attention. The first is the opening phrase, tasmin sati, "with that established" or "that being so" — a direct reference back to the mastered posture just described in 2.46 through 2.48. Pranayama, in Patanjali's ordering, does not stand alone as a first practice; it follows a steady, comfortable seat as its precondition.

Gati-viccheda: interruption, not deep breathing

The second point is the definition itself. Pranayama here is defined as gati-viccheda, the cutting off or interruption of the ordinary movement (gati) of shvasa (inhalation) and prashvasa (exhalation). This is a precise and somewhat startling definition: pranayama is not defined as slow, deep, or rhythmic breathing, which is how the term is often popularly understood today, but specifically as the practice of breaking the automatic, habitual flow of the breath — most directly through retention, the pause between breaths.

Reading the definition in sequence

Patanjali goes on, in the sutras that immediately follow this one, to describe further refinements — the places, durations, and qualities of this breath work — but this verse establishes the foundational technical definition before any of those refinements are introduced. The commentarial tradition treats the emphasis on interruption as significant: ordinary breathing runs on an unconscious, automatic pattern, and pranayama begins at the point where that automatic pattern is deliberately interrupted and brought under conscious attention.

Why order matters here

The placement of this sutra directly after the three verses on asana is not incidental. The tradition consistently treats a stable seat as the ground pranayama depends on; without it, attention is divided between managing the body and managing the breath, and the more delicate work of the fourth limb becomes difficult to sustain safely or with steadiness.

Sequencing your own practice

This verse is the reason that any account of pranayama in the classical yoga tradition puts a steady, comfortable seat before it, rather than treating breath retention as something to attempt in any posture, at any time. Before working with any interruption of the breath, however brief, it's worth checking: is the seat itself steady and at ease in the sense described in the previous verses? If the body is still negotiating discomfort or instability, that is the place to keep working first.

A short concrete practice

Once seated steadily, spend a minute simply observing the natural, unforced rhythm of inhalation and exhalation without changing it — this is gati, the ordinary movement the sutra refers to. Then, very gently, introduce the smallest deliberate interruption: after a natural exhalation, pause for a comfortable few seconds before the next inhalation begins, rather than letting the breath continue on its automatic track. Keep this pause brief and unforced — a few counts is enough to notice the difference between automatic breathing and consciously interrupted breathing. Return to natural breathing afterward. This is meant only to illustrate the distinction the sutra is making, not as an extended retention practice.

A caution about pacing

Because this sutra defines pranayama technically rather than prescriptively, it is not an instruction to hold the breath for as long as possible. The verses that follow it in the text go on to describe gradations and refinements precisely because the practice is meant to develop gradually, under careful attention, building from the steadiness of the seat already established.

How commentators frame the sequence

Vyasa's Bhashya emphasizes that this ordering — posture, then breath — reflects a broader pattern in the text, where each limb prepares the ground for the next rather than the limbs being interchangeable or optional in sequence. Translators including Bryant note that this is one reason classical presentations of pranayama insist on a settled body as a prerequisite, since the nervous system's steadiness during retention work depends substantially on the stability already achieved in the seat. Read this way, 2.49 is less a stand-alone breathing instruction than a hinge point in the text, connecting the outer, more physical discipline of asana to the more subtle work of withdrawing attention from the senses that follows in the sutras after this one.

Confusing pranayama with deep breathing

The most common misreading equates pranayama generally with deep or slow breathing exercises, as the term is frequently used today in casual wellness contexts. Patanjali's own definition here is considerably more specific: pranayama is the deliberate interruption of the automatic flow of breath, most directly meaning retention, not simply breathing more slowly or deeply. Deep breathing may be involved in preparation, but it is not what this sutra defines as pranayama itself.

Forcing retention from the outset

A second, more serious misreading takes "interruption" as license to attempt long or forceful breath retention immediately, without the grounding the text specifies. Hatha yoga texts that describe breath retention in much greater technical detail than Patanjali repeatedly caution against forcing retention, and the sequencing in the Yoga Sutra itself — pranayama coming only "with that," the steady posture, "established" — points toward gradual, careful development rather than an abrupt or strained beginning.

The corrective

Presented accurately, this verse offers a precise technical definition embedded in a specific sequence: a steady seat first, then a carefully introduced interruption of ordinary breathing, developed gradually rather than seized upon as an isolated breathing technique.