A meaning of life
When a child is young, it thinks it is the center of the world. Then it grows older and learns about the world around it, a world of great and infinite potential and wonderful opportunities. As it grows into adulthood it learns, much to it's dismay, that it isn't at the center of the universe. It still has it's hopes and dreams. But soon even those are lost as it hits the ceiling of it's own abilities and faces the limitation of time. But even that isn't the worst thing it loses. It loses it individuality as it realizes that everyone else is exactly the same. Suddenly it isn't special or different in any way, and that is the worst thing.