Kriya (kriyā): Action, and the Word's Three Overlapping Uses

Derivation

Kriya comes from the root kṛ, "to do" or "to make" — the same root behind ordinary Sanskrit words for action, activity and ritual performance. As a plain word, it simply means "action", "practice" or "rite". This breadth is the reason "kriya" shows up in several genuinely different contexts in yoga writing, and precision about which context is meant matters more than it might first appear.

Three overlapping but distinct uses

The hatha cleansing acts. The Hatha Yoga Pradipika and Gheranda Samhita describe six cleansing techniques, collectively named shatkarma ("six actions"): neti (nasal cleansing), dhauti (a set of cleansing techniques for the digestive tract), basti (a yogic enema technique), nauli (abdominal churning), trataka (steady gazing) and kapalabhati (a rapid, forceful breathing technique classed here rather than as pranayama proper). Individually and collectively these are sometimes called "kriyas" in later usage, since each is a specific action performed for a purificatory purpose. The Hatha Yoga Pradipika presents these as preparatory, intended for those in whom excess of fat or phlegm needs clearing before pranayama, rather than as a universal daily prescription for everyone.

Patanjali's kriya-yoga. Separately, and earlier, the Yoga Sutras open their second chapter with the compound kriyā-yoga, defining it (2.1) as tapas (austerity/discipline), svādhyāya (self-study) and īśvara-praṇidhāna (surrender to the divine) — a threefold practical discipline distinct from the eight limbs that follow and distinct from the hatha cleansing acts described centuries later.

The initiatory meditation lineage. "Kriya Yoga" also names a specific line of meditative technique transmitted through a lineage associated with Lahiri Mahasaya and popularised in the West largely through Paramahansa Yogananda's Autobiography of a Yogi (1946) and the Self-Realization Fellowship he founded. This tradition's specific techniques are generally taught only to initiates within the lineage and are not identical to either Patanjali's kriya-yoga compound or the hatha shatkarma, despite the overlapping name.

Spontaneous movement. In some modern meditation and kundalini-adjacent contexts, "kriyas" can also refer to spontaneous, involuntary movements, sounds or postural shifts some practitioners report during intense practice. This usage is not consistently defined across the older texts, and different teachers and traditions describe and explain such experiences differently.

Why the overlap causes confusion

A reader encountering "kriya" in one article about nasal rinsing, another about Yogananda's lineage, and a third about spontaneous shaking during meditation could reasonably think these are unrelated coincidences of translation rather than one broad word doing genuinely different jobs. Being explicit about which of the three or four senses is meant in any given piece of writing is simply good practice, and its absence is one of the more common sources of confusion in glossaries that try to give kriya a single tidy definition.

Common misunderstandings

A frequent error is assuming "kriya yoga" always refers to Yogananda's specific lineage; the phrase appears in Patanjali centuries earlier with a different, threefold definition. Another is assuming all shatkarma "kriyas" are gentle or risk-free; several (basti, extensive dhauti practices) are technical procedures the texts themselves describe with real caution and traditionally taught hands-on rather than from a written description alone. A third is assuming spontaneous involuntary movement during meditation is always called a "kriya" in classical sources — usage here is considerably more modern and less textually fixed than the other senses of the word.

Where this is practised on the site

The practices library discusses the six cleansing acts alongside asana, pranayama, mudra and bandha. The texts section covers the Yoga Sutras' own definition of kriya-yoga in context.