A poster(mudvnine) that I respect on another site posted this:
I wasn't positive of the meaning.That's why I wrote "Easiest?" earlier...trying to imply that there is no one "easiest" way to go about it with different hitters. What you have to do with one, may turn out to not work, or even turn out to be detrimental to another...simply because each hitter has a different proprioception of how they want to move their body in order to accomplish a certain task, so the "cookie cutter" approach to teaching hitting that is so prevalent at most places can be problematic in many cases.
A sense or perception, usually at a subconscious level, of the movements and position of the body and especially its limbs, independent of vision; this sense is gained primarily from input from sensory nerve terminals in muscles and tendons (muscle spindles) and the fibrous capsule of joints combined with input from the vestibular apparatus.