पतंजलि
The science of Yoga was developed in ancient India as an allied science of Ayurveda for healing without medicine at the physical and mental level. The term Yogahas been derived from the Sanskrit work Yoktra. Its literal meaning is “yoking the mind to the inner self after detaching it from the outer subjects of senses”. Like all other sciences, it has its roots in the Vedas. It defines chittai.e. dissolving thoughts, emotions and desires of a person’s consciousness and achieving a state of equilibrium. It sets in to motion the force that purifies and uplifts the consciousness to divine realization. Yoga is physical as well as mental. Physical yoga is called Hathyoga. Generally, it aims at removing a disease and restoring healthy condition to the body. Rajayoga is mental yoga. Its goal is self realization and liberation from bondage by achieving physical mental, emotional and spritiual balance. Yoga was passed on by word of mouth from one sage to another. The credit of systematically presenting this great science goes to Patanjali. In the Yoga Sutrasof Patanjali, Aumis spoken of as the symbol of God. He refers to Aum as a cosmic sound, continuously flowing through the ether, fully known only to the illuminated. Besides Yoga Sutras, Patanjali also wrote a work on medicine and worked on Panini’s grammar known as Mahabhasaya.