There is a difference between willpower and passion. You can learn all the rules of basketball and put all your effort into being the best on the court, but if you don’t truly love the sport, you’ll only go so far before burning out. You can memorize scales and learn all the rules of music theory, but that alone does not make you a musician. You have to play with passion—music is something that comes from deep within the soul, and it is much more than technical skill. Knowledge and effort are both necessary to perform well, but they grow naturally when you develop a genuine love for what you do. Willpower alone will only take you so far. And sometimes, even when you know all the notes, you might freeze up at the recital. If, when the moment comes for you to perform, you find yourself paralyzed with fear, you have much in common with Jesus’s apostles as they waited in the upper room.