Growing up separates happiness from pleasure. Gratification may bring pleasure, but it does not bring happiness. Material possessions, success, beauty and breeding may bring pleasure and pride, but not (necessarily) happiness.
And to realize that happiness, or the capacity for it, lies entirely within oneself...that often takes more than a lifetime to learn.
Life's as fleeting as the bubbles these delightful little girls are blowing on their Sunday outing, and yet happiness is lasting....
Oh my goodness, philosophy in the small hours.