From my own experience, once my brain understands, if I remind my body to focus on it every time I focus on said technique, my body will obey it...
I wish that were true for me. I think it depends on a number of factors, such as:
- How good a person's proprioception is. Like, do you know precisely in space where all your limbs are located.
- How good a person's gross-motor control is. Like, does your foot go exactly where you tell it to in space, or does it only go approximately where you direct it.
- How strong a person's stabilizing muscles are.
- How good a person's sense of balance is.
The point is, I think there's a big neurological component to martial arts. Some people are wired so that their "kinesthetic intelligence" is quite high. Sadly, I am not one of those people.