Who are we and why are we writing about the so called “space between?”

When you see a master musician performing they are onstage (duh), but where are they really? Where is their mind? Is it just a process of vibrations in the air and muscle memory or is it in what appears to be another dimension? Is it both? How can this process, this other dimension, this “space between” be understood, used and controlled? How does the player harness this energy while utilizing virtuoso techniques and, as the audience says, “makes it look easy?” What happens in our minds when we do things and, like the masters, can we control it while we play a violin concerto or even while we walk the dog, cut vegetables or type on the keyboard?