"Happy" isn't just the absence of unhappiness, though it might be that in some instances. "Happy" is being in the moment and not wishing for more, or less, or worrying about "what if" or "I wish I had" or "maybe." It is a Zen moment.
Well said! For that, I am awarding you a Golden Rramalita. (Man, I haven't given one of these out in years!)