I have three answers for you.
The general answer is to be happy with the way I live my life (which I mostly am) and to be happy with what I've done with my life (which I mostly am.) That's a never-ending quest, but it overrides everything else.
The mid-level answer is to become as self-actualized as possible, to be the most genuine "me" I can be. (Getting there, getting there . . .)
The most specific answer - which is probably the one you're looking for - is a list of particulars (not in order of importance): to sail a small boat across an ocean, to find a truly team-oriented woman for a wife, to write at least one book worth reading and being recommended to others, and to bring at least one of my MDA's (Million Dollar Ideas) to fruition.
I guess I'd better get busy, huh?