I am a long term martial arts practitioner and there is a state of mind called mu shin. It's a state of concentration and focus where you see and feel things that you can't in a normal mindset. When I get there, everything around me slows down and I can hone in on things that are more important. With many opponents I can sense their breathing change or their muscles tense for an attack and sometimes I sense what will happen before it does. I move faster and exhibit more strength without tension and the body moves and reacts without conscious thought. It goes along with a state of mind called zanshin where you are relaxed yet entirely alert. I took karate as a girl and aikido as a teen, now I'm into kendo and iaido. One of the ways in which I got to this point is through endless repetition of techniques and meditation. Repetition is the mother of all learning so I've heard. One of the most basic things is suburi where we deliver certain cuts over and over and over, hundreds of times until we achieve an altered mindset like a meditative trance. I'm a competitive shooter too and it works well for that. For bullseye shooting, I can literally see the muzzle flash and the slide cycle when I'm mentally in the zone. For combat shooting I visualize the course of fire first and see myself in action and then the body just follows the mental script or adjusts as needed.
I'm still waiting for the sleep issues to resolve or for the orgasms.