It's not just the vital, unconscious forces of the body that gets the body to move. In Move Within Yoga, we experience other forces and tap into the energy body (not purely the physical body) to move and lengthen into poses, and into life itself. It's not something our logical brains can understand or will understand no matter how much you study; you have to go into the poses or the experience for yourself.
I appreciate learning about the body, and it's inspiring to hear about discoveries and developments in physical health that have evolved the study beyond 1950s' anatomical books and diagrams.
However, even with the latest upgrades into body awareness, we're still very much bound - at least in the industrial West - to a materialistic view and relationship with the body. Yes, it's working with matter, but as long as we're breathing, spirit infuses this matter in mysterious ways.