I just heard this in a woodworking video, and it clicked so easily for me why all of my hobbies are things I do with my hands.
And as a good friend pointed out recently that I really like fixing things, it adds to resting my mind by using my hands instead of just replacing the item.
I know that people that score high on the Dominance trait in DISC also recharge by moving their bodies, so that has always been an outlet for me since I'm a 99 on that trait.
But seeing my hobbies as a source of rest for my mind is another piece added to the puzzle of finding flow and ease.