David Cain, an author and meditation teacher, encourages his students to avoid being “fair-weather meditators.” Similarly, you don’t want to be a fair-weather athlete or a fair-weather writer or a fair-weather anything. When a habit is truly important to you, you have to be willing to stick to it in any mood. Professionals take action even when the mood isn’t right. They might not enjoy it, but they find a way to put the reps in.