Best for Last

It's hard to believe, therefore I believe. It's easy to disbelieve, therefore I choose to believe. It's takes work to believe, daily prayer, daily trust, you gotta work at it, as you know. But hey when you take the big trip into the Sky, that's when it all pays off, for everybody involved. And there is a deep-seated instinct to save the best for last. Where does that come from, I wonder?