Yoga comes out of the Hindu Vedas.
It can be traced back to Patanjali, who was a religious leader. Yoga is a program that involves conscious stretching, deliberate movements, controlled breathing and relaxation exercises. It's purpose is to develop strength, flexibility, balance, body alignment, body awareness, muscular balance, calmness and controlled breathing. Yoga originated from a school of thought in the Hindu religion, which suggests that postures can isolate the soul from the body and the mind. In the Western world, yoga is used mainly as a form of exercise.