So far, it's very evident that the feeling of being in a "flow state" or "just doing it" is not something that simply happens out of nowhere. A precursor to that mind state is rigorous training and practice. Zen in the Art of Archery is a great read for getting a grasp on this concept. Basically, your goal is to perform without any thought, having a clear mind without any judgments or intentions, to the point in which you become one with the action/goal (anyone who has played sports may have experienced those games in which you almost black out during a great scoring streak, not even recognizing what's happening in the moment). BUT, to get to that point, you need to learn all the proper movements and formations and build muscle memory, which requires a ton of intentional thought and analysis. Basically, you need to learn as a stepping stone to unlearning.