Maharishi Patanjali Pratipadit Ashtanga Yoga :

Patanjali prescribed an eight-limbed process to reach the goal known as Ashtanga Yoga. There are eight limbs. Yama, Niyama, Asana, Pranayama, Pratyahara, Dharana, Dhyana and Samadhi. Yoga's role in helping one become resilient to stress (a part of our modern lifestyle), without harming the body (staying healthy) is gaining new importance. Basically acts as a guide on how to live a meaningful and purposeful life. They serve as prescriptions for moral and ethical conduct and self-discipline; They help us embrace the spiritual aspects of our nature.