Originating in ancient India, Yoga typically means 'union' between the mind, body and spirit. Physical and mental exercises are designed to help achieve this goal. On the physical level, yoga postures, called asanas, are designed to tone, strengthen, and align the body. These postures are performed to make the spine supple and healthy and to promote blood flow to all the organs, glands, and tissues, keeping all the bodily systems healthy. On the mental level, yoga uses breathing techniques (pranayama) and meditation (dyana) to quiet, clarify, and discipline the mind.