Now, you lose something in your life, or you come into a conflict, and there's gonna come a time that you're gonna know: There was a reason for that. And at the end of your life, all the things you thought were periods, they turn out to be commas. There was never a full stop in any of it.
If happiness is what you're after, then you are going to be let down frequently and be unhappy much of your time. Joy, though, is something else. It's not a choice, not a response to some result, it is a constant. Joy is 'the feeling we have from doing what we are fashioned to do,' no matter the outcome.