Imac007, you wrote a beautiful post, almost akin to poetry. Just reading it brought a smile to my face. The descriptions are vivid, the word choices are artistic and filled with imagery, and there is a flow to it (highly intentional pun).
To summarize the main point of what you wrote is an injustice to the elegant way you have expressed it, but I will do so anyways. The integration of the mental and physical is seamless, and we cannot think of them as layers added on top of one another. If I were to relate it to baking, here's one analogy. Suppose we are baking a cake and the cake represents a successful execution of a pool shot. The mental aspect of pool is represented by baking powder. We add baking powder into the batter, so that it causes a reaction to the baking process and creates a light, fluffy, perfectly textured cake. If you look at the cake, you can't identify where the baking powder is. We just know it's woven into the end product, and it did its job in some magical way.
Good pool is a form of artistic expression. When we are in the mode of playing good pool, it is a tapestry of mind and body working together. If I watch a pro like Thorsten Hohmann playing 14.1, I see not only the perfect bridges, body control and smooth stroking, but also a sense of his mind working to make strategic decisions, maintain concentration & tune out distractions of his surroundings, and engaging in the process. We cannot see the transitions between the mind and the body. Instead, it's all woven together and it looks like art.
The question is how we build this capability for ourselves. Your earlier posts about incorporating a mental aspect into the PSR has sparked an idea for myself. The concept of creating an anchor is something that works well for me. In NLP, an anchor is setting up some response to a particular trigger. The response I want is a feeling of being in creative flow, having a keen sense of feel and awareness to detail, a type of focus that is attuned to the task but comfortable with outside distractions, and heeding to process over outcome. This feeling will be woven into the physical actions. I have some ideas for how to trigger this response and create the anchor. It could be as simple as sliding the cue in my bridge hand. This will be my challenge moving forward.
Enjoy the day!