What it claims
Kriyā yoga's claim is technical rather than doctrinal: that the Vedāntic recognition of the self as not other than Brahman is approached most directly through disciplined work with breath, mantra and the subtle channels of the spine. The Sanskrit term kriyā means action in the strong sense — technique applied to the practitioner's own being rather than action in the world — and the system organises a sequence of internal manoeuvres that the lineage holds will accelerate what the longer Vedāntic curriculum approaches more slowly. The framing distinguishes kriyā from both the postural haṭha tradition that the West would later mistake for yoga itself and the renunciate daśanāmi tradition that descends from Ādi Śaṅkara. The practitioner is, in the kriyā framing, a householder who works the techniques into ordinary embodied life rather than away from it.
The lineage
The line that became visible in the West runs from the legendary Babaji of the Himalayan tradition through Lahiri Mahasaya — the nineteenth-century Bengali householder credited with the modern revival of the techniques — to Sri Yukteswar Giri and then to Paramahansa Yogananda, the figure who carried the system to the United States in 1920 and founded the Self-Realization Fellowship in Los Angeles the same year. The Autobiography of a Yogi — the public-facing document of the transmission — does not describe the techniques themselves; the formal kriyā practice is initiatory and is taught only after a period of preparatory lessons and a vow of confidentiality. The lineage's reasoning for that constraint is classical: the techniques are held to be powerful enough that practising them outside the relationship to a teacher who can correct what arises is more likely to cause damage than insight. The publicly available materials — the Autobiography, the printed Lessons, the lecture corpus — point at the work without disclosing it.
Where to encounter it
Paramahansa Yogananda's *Autobiography of a Yogi* is the canonical Western entry into the kriyā lineage and the only book in the index that addresses the system from inside it. The book is not a manual of practice but a record of the world from which the practice came — a tour of the Indian devotional and yogic landscape of the late nineteenth and early twentieth centuries written in a register that takes its miracles seriously without arguing for them. The contemporary Indian voice closest in temperament is Sadhguru, whose Inner Engineering: A Yogi's Guide to Joy and the Inner Engineering Online course descend from a different stream — the Śaiva yogic tantric tradition of southern India rather than the Lahiri Mahasaya bloodline — but treat disciplined inner technique as a curriculum to be done rather than a heritage object. Sadhguru on disability and spiritual practice and Sadhguru on unlocking the mind's full potential are short representative talks. Both currents — the older householder kriyā transmission and the contemporary Śaiva programme — share the insistence that the recognition the non-dual literature names is reached by doing the work, not by reading about it.
What it isn't
Kriyā yoga in the lineage Yogananda transmitted is not the same thing as kriyā in the broader Sanskrit sense — the word also names ritual action in the Vedic sense, ceremonial gesture in the tantric sense, and any deliberate yogic technique. The Lahiri Mahasaya lineage took the term in its narrowest sense, as the name of one specific transmission. It is also not, despite some Western reception, a shortcut. The kriyā literature is explicit that the system is a long discipline: the Autobiography describes practitioners working at it across decades, sometimes across multiple lifetimes in the lineage's framing, and the surrounding cultivation of karma yoga and [bhakti](lexicon:bhakti-yoga) alongside the technical work is treated as a condition of the practice rather than as an addition to it. The recognition the techniques aim at is the same recognition that self-enquiry and advaita approach by other means; the difference is method, not destination.
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