It is similar to the process we all used but soon forgot as we learned to walk and talk. It uses the unconscious mind more than the deliberate self-conscious mind. To explore the limitless potential with the human body is the quest to the mental game. Imagine what goes on inside the mind of an eager student taking a lesson from an equally eager new pro. The mind is churning with sixteen thoughts about what he should be doing and sixteen thoughts about what he shouldn't be doing.
Improvement seems dubious and very complex at best.
The panacea, or cure all, that is recommended is that with practice you will eventually see a major improvement. Overteaching is something that is a problem. One day when I was in a relaxed mood, I began saying less and noticing more. Errors that I saw but didn't mention were correcting themselves without the student ever knowing he had made them. Sometimes verbal instruction to a conscientious student sometimes decreases the probability of the desired correction occurring.