What the term names
Sanskrit dhyāna is formed on the verbal root dhyai — to think of, to contemplate, to meditate upon. Patañjali defines the limb in a single aphorism (Yoga Sūtras III.2): tatra pratyaya-eka-tānatā dhyānam — dhyāna is the unbroken stream of cognition flowing toward that object. The technical sense is precise: the field of attention, having been narrowed by dhāraṇā to a single chosen deśa — a point in the body, a syllable, a visualised image, the breath at the nostrils, the felt sense of awareness itself — is now sustained on that object without the repeated slipping-and-returning that dhāraṇā by definition still requires. Dhāraṇā is the act of binding the mind to a place; dhyāna is the bound-ness having become unbroken. The transition is not behavioural; it is the deepening of a single capacity, which is why the Sūtras treat dhāraṇā, dhyāna and samādhi together as saṃyama and not as three separable techniques.
From dhyāna to chán to zen
When Buddhist meditation literature was carried out of India into Chinese and the Sanskrit dhyāna was transliterated, the Chinese phoneme that approximated it was chán (禪). The school that took its name from the practice — the line that runs from Bodhidharma in the sixth century through Huineng to the great Tang masters — became Chán Buddhism. When the same line was transmitted to Japan, the same character was read aloud as zen. The English-language Zen tradition is therefore, etymologically, the dhyāna tradition — a thousand-year refraction of a single Sanskrit word for sustained meditative absorption. The technical content was reshaped along the way (the kōan curriculum Hakuin reformed has no obvious analogue in the Yoga Sūtras, and Dōgen's [shikantaza](lexicon:shikantaza) drops the object-of-attention structure that dhyāna presupposes), but the underlying claim — that there is a graded settling of attention deep enough to disclose what ordinary thinking obscures — is continuous across the family. The Pāli register preserved in Theravāda Buddhism uses the cognate *jhāna* for what is recognisably the same family of states with technical sense varying by school.
Where to encounter it
Among classical-yoga teachers in the index, Sadhguru's *Inner Engineering* is the most accessible English-language entry into the eight-limbed structure that locates dhyāna as the seventh stage; the Inner Engineering Online programme walks the limbs in practice, and Sadhguru's longer talk on consciousness and the inner science carries the same architecture in a more discursive register. Sadhguru on unlocking the mind's full potential and the talk on disability and spiritual practice draw out the relationship between the limb's external preparation and its inner phase. Paramahansa Yogananda's *Autobiography of a Yogi* sits in the same Hindu lineage and treats dhyāna as the precondition for the kriyā methods his school transmits. From the Buddhist side of the same etymological family, Jon Kabat-Zinn's MBSR programme is the secularised entry into a sustained concentrative practice that meets dhyāna on operational ground without using the Sanskrit; Adyashanti's *True Meditation* and *Do Nothing* approach the limb from the Sōtō-Rinzai hybrid lineage that descends from the Chinese Chán the term itself produced.
What it isn't
Dhyāna is not the same as samādhi, though the two are immediately adjacent on Patañjali's path. Dhyāna presupposes a meditator and an object that the meditator's attention is held continuously upon; samādhi is the dissolution of the structural gap between the two. The classical literature is unsentimental about this distinction: a sustained absorption that retains the meditator-object structure, however deep, is dhyāna; the collapse of that structure into a single undivided field is what the next limb names. Dhyāna is also not, on Patañjali's reading, an exotic state separable from ordinary cognition — it is what ordinary cognition becomes when the conditioning that pulls attention away from its chosen object has been temporarily set aside. The English word meditation, used as a generic, conflates dhyāna with dhāraṇā and sometimes with samādhi; the Sanskrit register the Sūtras preserve treats them as distinct stages on a single continuum and is more useful for that reason.
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