The description of Ashtanga yoga is found in the book "Yoga Sutras" written by Maharishi Patanjali. In it, through various sutras, the eight organs of Ashtanga yoga have been explained, which are as follows: - (1) Yama, (2) Niyam, (3) Asana, (4) Pranayama, (5) Pratyahara, (6) Dharna, (7) meditation and (8) samadhi.
The main aim of the practice of these eight limbs is the attainment of God. Along with your spiritual progress, physical and mental health can also be improved, and various psychological and physical diseases can even be cured.