I think that the root of this goes back all the way to Zen-type of thinking. In Zen, it's often taught that mind is elusive/delusive and action matters. "Mindlessness (mu-shin)" is often thought of the best way of carrying tasks, and I see a similar principle in many traditional martial arts/craftsmanship; a new learner should just do certain tasks without thinking/questioning, and eventually their muscle memory will…
Erm, catholicism?