Here in my view, is an incredible example of what makes a human being human, or I should say, adaptive. The capacity to feel the midpoint, AS A POINT. Nothing could be more obvious that the practitioner in this video can feel perhaps on the level of the nanoscale, the absolute center-of-gravity of each component to the system she erects, all of which then held in mind (felt) in terms of the whole. Speaking more broadly, this emotional capacity is what allows any organism to adapt to whatever role it evolved to play in nature. For most species, the midpoint is instinctively scripted and so the organism stays niche specific. But in humans, and dogs, finding a midpoint constantly in flux so that energies can be combined and amplified, is the essence of the mutual entrainment of our two species.