You don't need to be a scholar. You need the map and half a dozen anchors you can say out loud. This guide gives you the high-level arc of yoga's history, the verses and limbs that actually show up in a studio, an honest glossary of the terms you'll keep hearing, and a simple way to teach philosophy without turning class into a lecture.
On deep absorption (samadhi). Defines yoga, names the five kinds of mental churn, offers the practices that quiet the mind.
On practice. The "how-to" book: the eight limbs, the yamas and niyamas, and the role of action and suffering (kleshas).
On powers. What refined focus (dharana → dhyana → samadhi) yields, and the warning not to chase the powers for themselves.
On freedom. The goal — kaivalya, a disentangling of awareness from all the churn — is stated and untangled from karma and rebirth.
Romanized Sanskrit, a plain translation, and the one line that's useful in the room. A caution up front: Sanskrit words have no one tidy English equivalent, so every translation here is an honest simplification — defensible, but not settled.
1.1 atha yoga-anushasanam
"Now, the instruction in yoga."
Why it matters: it says this teaching happens now, in this moment — the friendly seed of every "come back to your breath, right here" line you'll ever say.
1.2 yogash chitta-vritti-nirodhah
"Yoga is the stilling of the turnings of the mind."
Why it matters in a class: this is yoga's most famous definition — it's about the mind, not the pose. Your best anchor.
1.3 tada drashtuh svarupe 'vasthanam
"Then the seer stands in its own true nature."
Why it matters in a class: when the mental noise drops, you're not the thoughts — you meet yourself underneath them.
1.4 vritti-sarupyam itaratra
"Otherwise, you identify with the turnings [of the mind]."
Why it matters in a class: the downside of the whole project — when we forget, we become our mental weather.
2.46 sthira-sukham asanam
"The posture is steady and comfortable."
Why it matters in a class: this is the single most useful sutra for your job — effort (sthira) and ease (sukha) together, every pose.
2.47 prayatna-shaithilya-ananta-samapattibhyam
"By relaxing the effort and resting on the infinite."
Why it matters in a class: the way you get to steady-and-easy is by easing the strain — soften the grip, don't force.
2.48 tato dvandva-anabhighatah
"Then heat-and-cold, and all the pairs, lose their power over you."
Why it matters in a class: comfort in the body lets you stand apart from praise and blame, heat and cold — the modern edge of "be neutral in the pose."
2.49 tasmin sati shvasa-prashvasayor-gati-vicchedah pranayamah
"With that [steady posture], breath is regulated — the pause of the in-breath and out-breath is pranayama."
Why it matters in a class: breathwork follows posture, and it's about the pause — the natural bridge between doing and being.
3.1 desha-bandhah chittasya dharana
"Binding the mind to one place is dharana — concentration."
Why it matters in a class: pointing attention at one thing (breath, foot) is the first step of meditation, and it's trainable.
3.2 tatra pratyaya-ekatanata dhyanam
"A steady, unbroken flow of the same thought there is dhyana — meditation."
Why it matters in a class: concentration that doesn't snap back is meditation — the difference is continuity, not content.
3.3 tad eva artha-matrani-bhasa svarupa-shunyam iva samadhih
"The same [meditation] when only the object shines and the meditator drops away is samadhi."
Why it matters in a class: the deep end — no separate meditator, just stillness. A direction to point attention, not a pose to hold.
The five ethical restraints — how we relate to others and the world.
The five personal observances — how we relate to ourselves.
Steady-and-comfortable seat; the posture practice. In the old texts one pose, not a flow.
Breath control; regulating the life-force (prana) through the breath.
Turning the senses inward, withdrawing attention from the outside world.
Concentration — fixing the mind on a single point.
Meditation — unbroken flow of that concentration.
Absorption — the stilling resolves into freedom.
Note: the word ashtanga (Ashtanga yoga) means "eight limbs," borrowed for the modern Ashtanga Vinyasa method that is really a subset of what the limbs describe.
Non-harming — toward others and, modern teachers add, toward ourselves.
Truthfulness, balanced against ahimsa — the texts say don't tell truth that harms.
Non-stealing — including others' time, energy, and attention.
Often simplified as celibacy; better read as using your energy wisely — moderation of the passions.
Non-hoarding — not grasping beyond what you need, in stuff or in status.
Cleanliness — of body, space, and mind.
Contentment — ease with what is, not resignation to what's wrong.
Heat — the willingness to burn through discomfort; disciplined practice.
Self-study — reading, reflection, and honestly watching your own patterns.
Surrender to a higher power — held as devotion in the tradition, and freely adapted as "letting go of the outcome."
Action, and the chain of cause-and-effect it sets in motion. Popularly "fate"; classically, it's about the choices you make now.
Your duty or the right ordering of things — the pattern of action that keeps a life (and the world) in balance.
An imprint — a habitual groove cut by past actions and thoughts. Modern talk about "patterns" is samskaras.
A turning or fluctuation of the mind — the mental churn Sutra 1.2 asks you to still.
The mind-stuff, the whole field of mental activity — the thing that turns in vrittis.
The inner self or soul; what the Upanishads say is one with brahman, the unchanging ground.
In Samkhya (the philosophy Patanjali leans on): purusha is pure awareness, prakriti is all of nature, matter, and mind. Practice works at their meeting point.
The three strands composing everything: sattva (clarity), rajas (activity), tamas (inertia). Called "the balance" only loosely — it's really a description of constant flux.
The veil — the world-as-appearance that hides the underlying reality; a warning about how much is not as it seems.
A repeated sound or phrase for focusing the mind; "manas" (mind) plus "tra" (tool).
A whole tradition (see timeline), not a technique for "sex magic" — it uses the body and senses as vehicles rather than obstacles.
A subtle-energy center in the body map of Tantra tradition. Honest note: the modern chakra-as-rainbow-colors model you see in posters is largely a 20th-century Western reinterpretation, not ancient canon.
A coiled subtle energy said to rise through the centers when awakened — vivid imagery, and contested; treat claims carefully.
The sacred syllable; traditionally the first sound, the root of speech, often chanted to gather scattered attention.
A teacher, literally "the one who disperses darkness"; in tradition, a lineage of guidance, not a brand personality.
A committed daily practice — the whole of your chosen discipline, not any single session.
A respectful greeting meaning roughly "I bow to you." Pinky-finger myth in a modern studio: it is not "the divine in me honors the divine in you" — that's a popular mash-up. Honest and still warm: "a bow, with respect."
Once you know the eight limbs, the frame is easy to hold: asana is exactly one limb out of eight, and the flowing postural practice you teach is a recent, mostly 20th-century form. The old texts barely mention movement — the Hatha manuals had standing and seated poses meant for long, still holds by ascetics preparing to meditate. A modern vinyasa class amplifies that one limb and threads the others through it in small ways: themed intentions that touch the yamas and niyamas, pranayama sweeps, a savasana that hands students pratyahara (sense withdrawal) and a taste of dharana. Knowing this isn't a debunking — it's what lets you teach honestly and connect your students to something bigger than the warm room, without pretending your sequence is 5,000 years old.
"Yoga is the stilling of the turnings of the mind." It's the definition, it's short, and it puts the mind (not the pose) at the center. Say it once and class has a spine.
"The posture is steady and comfortable" — sthira (effort) and sukha (ease). This is your coaching verse: every cue about "find ease in the effort" lives here.
Asana is one of eight. This is your humility + honesty anchor: the posture class is a slice, and you can say so with confidence.
Three steps, three words each — enough story, no seminary.
Pattern beats recitation. Give your students the map, not the Sanskrit exam.