"That's what joy is. It's that feeling of just being there. It's being in the moment; not worrying about the past, not thinking about tomorrow; knowing that what you're doing is right on course for you today. If you're always on that sense of purpose, tomorrow takes care of itself. And the next day will take care of itself. You'll find that you have a tremendous amount of joy in your life. And I think that's the main reason we're supposed to be here."