When most Westerners hear the word yoga, they picture a studio — bodies moving through asanas, breath synchronized with movement, minds momentarily quieted. This form, known as haṭha yoga, is genuinely valuable. But it is also a single thread pulled from an extraordinarily rich and ancient tapestry.

So what is yoga, really? Where did it come from, and what is it ultimately for?

Yoga is among the world’s oldest spiritual traditions, born in India at a date that remains genuinely uncertain. Traditional yogic philosophy understands reality as a fundamental duality between puruṣa — the formless, unchanging realm of pure consciousness — and prakṛti — the realm of nature and materiality. As human beings we inhabit both simultaneously. Our bodies are of prakṛti; our deepest nature is puruṣa. The problem, as yoga sees it, is that puruṣa becomes so entangled in the physical world that it forgets what it is. Yogic practice is the systematic process of remembering.

The word itself comes from the Sanskrit root yuj — to yoke. Early applications focused on restraining the senses and withdrawing awareness from the physical in order to realize the puruṣa in its pure, unencumbered state — what the traditions call nirvikalpa samādhi, a liberation so complete that consciousness is no longer bound by any tie to the material world whatsoever.

The origins of yoga likely predate Hinduism itself. Seals from the Indus Valley civilization (c. 3600–1900 BCE) depict figures in recognizable āsanas, suggesting that early forms of yoga — like tantra — were probably developed by the Dravidians, the indigenous people of India, long before the Aryan migrations brought the Vedas and what we now call Hinduism. Yoga does not appear in Hindu scripture until the Upaniṣads (c. 900–300 BCE) and is described clearly only in the Bhagavad Gītā (c. 200 BCE) — suggesting that Hinduism eventually absorbed and formalized what had existed in earlier, less institutionalized forms.

The earliest structured yogic practice was likely Jain (c. 900 BCE), characterized by severe bodily renunciation and mental restraint — training the mind to remain unmoved by even the most extreme physical stimuli. This strand of practice persists in various forms today. Buddhism, arriving around 600 BCE, offered a different emphasis: rather than suppressing the body, it cultivated precise, sustained attention to breath and physical sensation.

From these roots, a remarkable proliferation followed. The Bhagavad Gītā introduced bhakti yoga — the yoga of devotion — and karma yoga, the yoga of right action. Patañjali’s Yoga Sūtras systematized rāja yoga, an eight-limbed path centered on breath, concentration, and the progressive stilling of mental activity.

Then came haṭha yoga — and here things get interesting. Its primary architects were the Nāth Yogis, a tradition close to my own scholarly heart, who pursued physical immortality through an extraordinary combination of āsana, prāṇāyāma, and alchemy — including the ritual ingestion of mercury. The alchemy has not survived into contemporary practice, but the Nāth synthesis of Patañjalian breath work with physical posture gave us what most of the world now simply calls yoga. Within that broad haṭha umbrella live the many schools familiar today — Iyengar, Vinyāsa, Yin, and Kuṇḍalinī, the latter focused on awakening the serpent-goddess energy at the base of the spine and drawing it upward through the cakras (pronounced chaakras).

What unites all of these forms, beneath their considerable differences, is this: yoga is an ancient technology for invoking inner awareness, refining the body and mind, and recognizing — directly, experientially — the divinity that was never actually absent.

The beauty of haṭha practice in particular is its radical adaptability. The postures have ideal forms, but those forms are pointers, not destinations. We simply move toward them, breath by breath, moment by moment. Flexibility is beside the point. Presence is the point.å

Recommended Reading

  • The Alchemical Body — David Gordon White
  • Yoga: Immortality and Freedom — Mircea Eliade
  • The Encyclopedia of Hinduism — Constance A. Jones and James D. Ryan
  • The Shape of Ancient Thought — Thomas McEvilley
  • The Yoga Sutras of Patanjali — B.K.S. Iyengar
  • Light on Yoga — B.K.S. Iyengar
  • Yoga Spandakārikā