Just to confirm my understanding of this statement in particular: "Use this fact to inhibit the muscles that you want to stretch, and to contract the muscles that will refine the posture."

I think of this as anchoring with my own strength, then the rotation and stretch emanates from that anchoring point. It's the point from where I anchor that makes all the difference in the pose. The technique we employ in class for a twist such as this (any twist, actually) is to pull back slightly, to draw in, in the direction away from the twist, creating a full back body. This with all the lower body, pelvic stability AND core provides the anchor from which we can lengthen and revolve in a continuing upward spiral, all the way up to the eyes.

For me, at least, I find it most helpful not only to understand WHAT muscle groups are involved in an action, but also HOW to engage, consider, whatever, those muscle groups. The "what" and the "how" are two totally different things, imo. You can understand a body part anatomically and intellectually only so well, but if you can't figure out HOW to have your brain send the right signals to that body part to get it to do what you want it to do, you won't have success. Proprioceptive ability can't just be beaten into someone by saying "do this! do this!" They need to understand the feeling of where the body is in space. That, I believe, is the toughest part in teaching all this, helping to create a sense of body awareness as the goal, rather than just making the appropriate shapes by knowing what parts to use.

Did any of that make any sense?