When you're in the middle of your workout and you wanna step up the pace. What do you think about? For instance, when I'm in the middle of mine and I want to step it up or I feel like I'm falling off I think about my brother and the anger makes me push harder. Its almost like the dark side of the force. Harbor your hate! Use it! Indulge it and turn it into power! Mwahahahahahahaha:ninja