One part moves, all parts move

A mechanism that I have observed is that when I move in this way the body is already coordinated. In the bending exercise, if I maintain the sensations prescribed, when I move one cavity the others respond with their apporpriate movement for what I am trying to do. I can pick any reference point such as the spine, the knees, or the feet and simly maintain the feeling from the feet up to the sacrum and from the sacrum up to the neck and if I move the reference the other bits move in concert. There is no sequence to it. They all go at the same time.