Once you make up your mind that the only decent way to live is to schedule the pain and the tough challenges first so that you can enjoy the pleasure, the rewards, and the payoff later, then you have to take an important practical step. You must make advance decisions as to how you are going to practice discipline in the various dimensions of your life.
The author (Standing Ground) then gives an example, using physical exercise and staying in shape as a rebuking parable. Ouch! (and a good read)