yoga and enlightenment
The original purpose of yoga is to teach enlightenment.
So how is it that a series of stretches and postures can do such a thing? Enlightenment is letting go. Letting go of self. Letting go of thought. Your mind is one of the obstacles to enlightenment.
Yoga is the art of opening up the energy centres of your body. A combination of the physical and the spiritual. So that you flow. And no parts of you remain blocked.
When you practice yoga you are letting your mind learn the wisdom of the body.