Around 2,000 years ago, the sage Patanjali described yoga as chitta vritti nirodha: the settling of the fluctuations of the mind (Yoga Sutras 1.2). To get there, he outlined eight limbs, or ashtanga. Postures are only one of them.
1. Yama: how we treat others
Five ethical restraints: non-harming (ahimsa), truthfulness (satya), not stealing (asteya), wise use of energy (brahmacharya) and non-grasping (aparigraha).
Mental benefit: fewer regrets and conflicts mean less to ruminate on. Living by your values brings peace of mind.
2. Niyama: how we treat ourselves
Five observances: cleanliness (saucha), contentment (santosha), discipline (tapas), self-study (svadhyaya) and surrender (ishvara pranidhana).
Mental benefit: contentment and self-study counter the constant sense of "not enough".
3. Asana: posture
Originally a steady, comfortable seat for meditation; today a wide range of poses.
Mental benefit: research suggests yoga practice can reduce stress and improve mood, and moving the body is a reliable way to settle a restless mind.
4. Pranayama: breath regulation
Mental benefit: slow breathing, especially with a longer exhale, is one of the quickest ways to calm the nervous system. Try extended exhale breathing.
5. Pratyahara: withdrawing the senses
Turning attention inward rather than chasing every sight and sound.
Mental benefit: in a world of notifications, practising pratyahara is like resting a tired muscle.
6. Dharana: concentration
Holding attention on one point, such as the breath, a mantra or a candle flame.
Mental benefit: better focus, and the ability to notice distraction sooner.
7. Dhyana: meditation
Concentration that flows without effort.
Mental benefit: a steadier relationship with thoughts and emotions.
8. Samadhi: absorption
The state of complete absorption that Patanjali describes as the goal of yoga.
Start with one limb this week
Pick one limb and live it for seven days. For example, practise santosha by naming one thing you are content with every evening, or ahimsa by noticing harsh self-talk and softening it. Small, consistent steps are how the limbs grow.
How the limbs work together
Patanjali presents the limbs in order, but they are better understood as a wheel than a ladder. Ethics make the mind quieter, which makes breath practice easier; breath practice calms the nervous system, which makes concentration possible; meditation brings insight, which makes ethical living more natural. Each limb supports the others.
The first five are often called the outer limbs (bahiranga), concerned with conduct, body and breath. The last three are the inner limbs (antaranga), concerned with the mind. Patanjali calls the combined practice of the final three samyama.
What modern research says about yoga and mental health
Research on yoga has grown rapidly. Reviews suggest:
- Stress: yoga practice is associated with reduced perceived stress and, in some studies, lower cortisol.
- Anxiety: several meta-analyses report small to moderate reductions in anxiety symptoms.
- Depression: yoga may help as a complement to standard treatment, with moderate effects in some reviews.
- Sleep: improvements in sleep quality are reported in many groups, including older adults.
Most studies focus on asana, breath and meditation, the third to seventh limbs. Fewer explore ethics, though research on gratitude, kindness and values-based living suggests those, too, support wellbeing.
A week-long eight-limb practice
You can touch every limb in a single week:
- Monday (yama): practise satya, truthfulness, by noticing small exaggerations.
- Tuesday (niyama): practise santosha, writing three things you are content with.
- Wednesday (asana): a 20-minute Hatha practice.
- Thursday (pranayama): five minutes of box breathing.
- Friday (pratyahara): an evening without screens for one hour.
- Saturday (dharana): five minutes of candle gazing.
- Sunday (dhyana): 15 minutes of quiet breath awareness.
Key takeaways
- Patanjali's eight limbs describe a complete path, from ethics to meditation, aimed at settling the fluctuations of the mind.
- Postures are only one limb. Breath, concentration and ethical living are equally important for mental wellbeing.
- Research supports yoga's role in reducing stress and anxiety, mostly through asana, breathing and meditation.
- The limbs reinforce one another: a kinder life makes a quieter mind, and a quieter mind makes kindness easier.
- Start small, with one limb per week, and let the practice grow naturally over months rather than days.
Frequently asked questions
What are the eight limbs of yoga in order?
Yama, niyama, asana, pranayama, pratyahara, dharana, dhyana and samadhi.
Are the eight limbs the same as Ashtanga Yoga?
Ashtanga means "eight limbs". Patanjali's eight limbs are a philosophy; Ashtanga Vinyasa Yoga, taught by Pattabhi Jois, is a modern posture practice named after it.
Which limb should beginners start with?
Most people start with asana and breathing, and gradually explore the others. Some teachers suggest beginning with the yamas, since ethics support everything else.
Can yoga replace therapy?
No. Yoga can support mental wellbeing alongside professional care, but it is not a substitute for treatment when it is needed.
Updated 9 October 2026 by the YogiSoul editorial team. Read our editorial policy and wellness policy.