" I also figured out that I could use my workouts as a form of meditation because I concentrate so much on the muscle, I have my mind inside the bicep when I do my curls. I have my mind inside the pectoral muscles when I do my bench press. I’m really inside, and it’s like I gain a form of meditation, because you have no chance of thinking or concentrating on anything else at that time. "

― Timothy Ferriss , Tools of Titans: The Tactics, Routines, and Habits of Billionaires, Icons, and World-Class Performers