You catch yourself longing for something better. Eventually you remember that you've sought better before, and it was never better, only different, and sometimes it was worse. Different isn't as appealing as better, not as much anymore.
I never understood the expression, "the sun was beating down," until then. It was oppressive and ever present. Like an all you can eat buffet at an ice cream shoppe, it was too much of a good thing
At first it provided a brief escape from bad times. Then it became part of growing up. Later it symbolized the monotony of adulthood. Ultimately, it meant that you were home. Whoosh! Life comes at you fast.