In taiji we are doing two things at a time. Maybe four. All require and active and present mental awareness. We are moving physical and energy and we are tracking both with the right and left hemispheres of the brain. Don’t ask me which because I’m not neuroscientist. Susan Matthews could answer that question.
All I know is that you are moving physical body and the qi flows through the body and outside of it and it is as though you must separate the brain’s halves to track each. I know that we are capable if it. Our human resources are infinite if we are willing to step beyond perceived limitations.
I learn different things from George Xu and Shifu Matthews but they are in alignment on at least one thing that I have learned from both. The fundamental universal thing common to all martial arts. Maybe you know to what I refer. Hopefully it resonates in some wordless part of you, because words fail me when I try to describe what it is exactly. That is no doubt the key and we all are looking for the key that unlocks the mystery.