In this dynamic world, a man wandering around in the process of life death tries to put his whole attention to the divine. But the mind is so most playful and stopping his waves is really like stopping the intensity of the wind. To prevent nous from scattering all these powers, Maharishi Patanjali has mentioned eight organs in the yoga philosophy. They are also described as 8 steps of yoga it has eight organs like Yama, Rules, Asana, Pranayama, Repatriation, Meditation and Samadhi.
Image credit 