Yoga is a systematic practice of physical exercise, breath control, relaxation, diet control, and positive thinking and meditation aimed at developing harmony in the body, mind, and environment. Most people are familiar with the physical poses or yoga positions but don’t know that yoga involves so much more. Yoga is essentially a spiritual discipline based on an extremely subtle science, which focuses on bringing harmony between mind and body. The word ‘Yoga’ is derived from the Sanskrit root ‘Yuj’, meaning ‘to join’ or ‘to yoke’ or ‘to unite’.