Yoga Sūtra de Patañjali
Patanjali codified knowledge of Yoga in a book of 196 verses called Yoga Sutra. He divides the Yoga into 8 parts, so it is called Ashtanga Yoga, these parts are considered the 8 steps to enlightenment.
1. यम: yama – observances and moral disciplines.
2. नियम: niyama – commitments and personal discipline.
Saucha- purity, cleansing
Svadhyaya- self-study and scripture study
Isvara pranidhana- devotion to God
3.आसन āsana – posture.
4.प्राणायाम prāṇāyāma – breath control.
5.प्रत्याहार, pratyāhāra – abstraction of the senses.
6.धारणा dhāraṇā – concentration.
7.ध्यान dhyāna– meditation.
8. Sसमाधि samādhi – liberation, illumination.