Here’s a chopped up quote, from Mihály Csíkszentmihályi, to explain the idea

“Wake up in the morning with a specific goal to look forward to… everyone can discover at least one thing every day that is worth waking up for… It is easier if each night before falling asleep, you review the next day and choose a particular task that, compared to the rest of the day, should be relatively interesting and exciting. Then next morning, open your eyes and visualize the chosen event—play it out briefly in your mind, like an inner videotape, until you can hardly wait to get dressed and get going… The important thing is to take the easy first steps until you master the habit, and then slowly work up to more complex goals. Eventually most of the day should consist of tasks you look forward to, until you feel that getting up in the morning is a privilege, not a chore.”