It's all the above. You look back and wonder what you were so hung up on? Life continues to pass. You change without changing. You grow up. You feel like a kid. You do both. You understand yourself more. You understand yourself less. You realize you know a whole lot and nothing at all. If your smart, you figure out a way to enjoy yourself in the process because you realize what "It" is all about. A simple little complex thing called Life. Enjoy it while you can or forever hold your peace.