Defines Yoga and its parts such as Posture (Asana), Process of Restraining Breath (Pranayam), Restraining the Sense Organs (Pratyahar), Conyemplation (Dhyan), Firmness (Dharana), Trance (Smadhi), Hearing Inner Celestial Music, Remembering again and again (Nididhyasan). Signs of a Seeker and Method of Realization.