Yoga traditions

Classical yoga and the Yoga Sutra

The Yoga Sutra attributed to Patanjali is a short text of about 195 aphorisms. The Internet Encyclopedia of Philosophy entry by Edwin Bryant reports that most scholars place it shortly after the turn of the Common Era, around the first or second century CE, that some propose earlier dates, and that it cannot be later than the fifth century CE. The tradition itself credits a legendary figure, Hiranyagarbha, with the origin of yoga.

The same entry states that Samkhya supplies the metaphysical framework while Yoga supplies the meditative practice, and that Vyasa's commentary, dated to about the fourth or fifth century CE, became nearly canonical for later interpretation. Yoga was not treated as a separate philosophical school until late; the first reference to it as separate appears in the writings of Shankara in the ninth century CE.

The Bhagavad Gita and the paths of yoga

The Internet Encyclopedia of Philosophy entry on the Bhagavad Gita says the epic of which it is a part took shape around the beginning of the Common Era and that the word yoga carries several senses in it, including skill in action. Commentators describe the Gita as presenting karma (action), jnana (knowledge) and bhakti (devotion) as paths. An editorial in the International Journal of Yoga adds that Swami Vivekananda later broadened yoga to cover several streams, including jnana, bhakti and karma.

Haṭhayoga and its early texts

Tsering Dorji, writing in the Journal of Yoga Studies in 2025, reports that the Amṛtasiddhi, an eleventh-century text, is now considered the earliest text to teach some of the main practices of haṭhayoga, and that the Tibetan corpus built on it belongs to a Buddhist lineage descended from Virupa as well as having later spread into the Hindu haṭhayoga tradition. The better-known Haṭhapradīpikā was composed by Svatmarama, dated in the Oxford and Marburg project to about 1400 CE, with more than 200 manuscripts used for its critical edition and the oldest dated 1496 CE.

Postural yoga in the modern period

Jason Birch and Mark Singleton report that the Haṭhābhyāsapaddhati, a haṭhayoga text probably composed in eighteenth-century Maharashtra, describes six groups of postures arranged in sequences, and that a manuscript was held in the Mysore Palace. They describe T. Krishnamacharya as teaching at the Mysore court in the 1930s and 1940s, developing dynamic sequences of postures, and teaching students including B.K.S. Iyengar (1918-2014) and K. Pattabhi Jois (1915-2009). They judge it highly likely that Krishnamacharya knew the text, while noting that some conclusions about its Mysore history remain speculative.

A 2023 study by Birch and Jacqueline Hargreaves compares eighteenth- and nineteenth-century practice manuals and identifies three regional collections of complex postures that, the authors argue, were taken up by the gurus who popularized yoga in the early twentieth century. The authors present this as the first clear evidence of transmission from premodern posture teaching to modern postural yoga.

The word yoga and its senses

An editorial by H. R. Nagendra gives the Sanskrit etymology of yoga as relating to yoking or unification, and says the goal of unification with reality is named differently across traditions, for example nirvana, kaivalya and moksha. The editorial is an opinion piece. It also argues that using yoga and meditation interchangeably, or reducing yoga to physical postures, reflects a limited understanding.

Haṭhayoga and related names

The Sanskrit term haṭhayoga is often rendered as forceful yoga. Dorji notes that the Tibetan phrase drag po'i sbyor ba, forceful yoga, is one equivalent of haṭhayoga in the Tibetan Amṛtasiddhi texts. Birch and Singleton add that catalog entries and later commentaries also refer to the Haṭhapradīpikā under the longer title Haṭhayogapradīpikā, which can complicate searches.

Modern postural yoga and the Mysore tradition

Birch and Singleton use the phrase modern postural yoga for the posture-centered yoga associated with Krishnamacharya and with transnational schools such as Ashtanga Vinyasa Yoga. Mysore appears in the sources as the city and court where Krishnamacharya taught; the sources reviewed do not define Mysore tradition as a formal institution, and this page uses it only as the label for that teaching setting and lineage. Bryant states that the presentation of yoga mainly as bodily postures is essentially a modern phenomenon without precedent in the premodern tradition.

Confusable terms

Ashtanga, meaning eight-limbed, names the eight-part path in the Yoga Sutra, but Ashtanga Vinyasa Yoga is a separate twentieth-century system taught by Jois. Yogācāra, a Mahayana Buddhist school, takes its name from the Yogācārabhūmi; the Stanford Encyclopedia of Philosophy says yoga in that context likely refers to meditation or mental cultivation. Contemporary studio exercise classes use yoga as a label, but the sources reviewed describe the traditions on this page, not studio programs.

The classical eight limbs

Bryant lists the eight limbs of the Yoga Sutra as yamas (abstentions), niyamas (observances), asana (posture), pranayama (breath control), pratyahara (withdrawal of the senses), dharana (concentration), dhyana (meditation) and samadhi (absorption). He presents the text as a terse manual meant to be studied with a teacher, and describes devotion to Isvara as one optional route to samadhi. Pages on Meditation and Yoga cover practice in more detail.

Haṭhayoga practice literature

The Oxford and Marburg project describes the Haṭhapradīpikā as a Sanskrit manual on physical yoga. Birch and Singleton report that the later Haṭhābhyāsapaddhati contains more techniques than the fifteenth-century Haṭhapradīpikā and the most extensive set of complex postures in the premodern works available to them. Pages on Kundalini and Yoga Styles cover contemporary practices that draw on this vocabulary.

Jain, Buddhist, Tantric and devotional strands

The Stanford Encyclopedia of Philosophy entry on Jaina philosophy dates Hemacandra to 1089-1172 and points to his Yogaśāstra, a twelfth-century handbook, as the main reference for yoga and meditation in Jainism. In Buddhism, the Stanford entry on Yogācāra dates its systematizers Asaṅga and Vasubandhu to about the fourth or fifth century CE. Dorji describes Tibetan trulkhor texts that teach body postures followed by breathing techniques. Bhakti appears in the sources as devotion to Isvara in the Yoga Sutra and as one of the Gita's paths.

The open sources reviewed are limited for the Tantric Śaiva strand, for bhakti traditions beyond the Gita, for Jain practice in detail and for most Buddhist yoga outside Yogācāra and the Amṛtasiddhi. This page therefore does not describe those strands in depth, and it does not give instructions for any practice.

Liberation and the stilling of the mind

Nagendra reports that the traditions name the aim of yoga differently: nirvana in Buddhist usage, kaivalya in Patanjali's system and moksha in Vedanta. Bryant's account of the Yoga Sutra presents its practices as a means of meditative discipline within a dualist Samkhya framework, leading to absorption and release.

Bodily transformation in haṭhayoga and the Amṛtasiddhi

Dorji reports that the Amṛtasiddhi teaches a system whose stated aim is freedom from ageing, disease, death and rebirth, by making the body a path to liberation in this life. These are claims of the text and its lineage, not findings that research has tested.

Health and well-being in modern practice

The National Center for Complementary and Integrative Health describes yoga as rooted in Indian philosophy, begun as a spiritual practice and now used to support physical and mental well-being, usually through postures, breathing techniques and meditation in the United States. Contemporary health uses are therefore a later purpose than those stated by the traditions above.

Historical scholarship and disagreement

Scholars disagree on how far modern postural yoga continues earlier practice. Bryant states that its posture focus has no precedent in the premodern tradition, while Birch and Hargreaves argue that clear lines of transmission from premodern posture teaching can be shown. Jois taught that his system came from a text called the Yoga Korunta; Birch and Singleton say that text is apparently lost, that it may have been the Haṭhābhyāsapaddhati or a version of it, and that the chronology of some sanctioned biographies of Krishnamacharya has been questioned by other scholars.

Clinical research on modern practice

The National Center for Complementary and Integrative Health summarizes research on modern yoga practice. It says low back pain has the most research and the evidence suggests a slight benefit, and that evidence for neck pain, headaches and knee osteoarthritis is promising but limited. It reports possible help with stress, depression and menopause symptoms, thin evidence for anxiety disorders, low-quality evidence for PTSD and weak evidence for multiple sclerosis. These findings concern modern programs, not the traditions, and should not be read as testing the claims of any lineage.

What was searched and not found

Searches for open-access scholarship on Jain, Tantric, bhakti and Buddhist yoga, and on the Mysore lineages, returned few free sources beyond those cited here. No controlled clinical studies of the traditions as wholes were found, and some key scholarly works on haṭhayoga origins and modern yoga are books or articles that are not freely available. Readers should treat the coverage of those strands as incomplete.

Injury reports

A 2013 systematic review by Holger Cramer, Carol Krucoff and Gustav Dobos found 76 unique cases in 35 case reports and 2 case series. Musculoskeletal events were most common (27 cases), followed by nervous system events (14) and eye events (9), including worsened glaucoma. Headstand, shoulder stand, lotus position and forceful breathing were most often named. The authors state that case reports cannot estimate how often such events occur.

Cautions from a public health agency

The National Center for Complementary and Integrative Health reports that sprains and strains are the most common injuries and serious injuries are rare, that adults 65 and older have higher rates of yoga-related emergency visits, and that hot yoga carries risks of overheating and dehydration. It advises beginners to avoid headstands, shoulder stands, lotus position and forceful breathing, and advises people who are pregnant or who have conditions such as glaucoma to seek provider guidance. It also advises against using yoga to delay seeing a health care provider about a medical problem.

Teachers, cultural attribution and gaps

The sources reviewed do not report spiritual abuse, coercion or financial harm connected with these traditions, and this page does not claim that none exists. NCCIH advises asking an instructor about training and experience; none of the sources reviewed lists a credential register. Yoga belongs to living Hindu, Jain and Buddhist communities, each of which holds its own authority over its texts and teaching, and Bryant notes the Yoga Sutra was meant to be studied with a teacher. Readers should attribute practices to the specific tradition and text they come from.