True Peace and Stillness has nothing to do with the body or the mind. The body and the mind vibrate and flow with energy. Trying to still the mind or body is impossible, like trying to still the turning of the planet. It's possible to slow or calm the mind and the body, but they will continue to flow.

In meditation we may still the body somewhat and settle the mind's agitation. But the True Peace and Stillness we seek is beyond the world of time and space. It is the core of our being, the core of Aware Being that perceives the movements of the world through the senses and through the mind.

So do not be concerned by the body or the mind's agitation. It is not you. Pure Peace and Stillness is the heart of your being. It is your unchangeable nature, within which the world of change is perceived. Let the world change, and be as you are.