It ends, fast and fragile the same way it started. You get your handshake, you get your piece of paper and your four sentences worth of memories that add up to a fifteen-second walk across a stage.
All the important people say they're proud of you, all your friends- all your friends of friends say they'll miss you. You toast them to a new beginning; you smile your way into a new place.
Everything is different now, four years go by and when it's over it all hits you at once. Nothing is the same anymore, everything has changed.
Now you must grow up, the celebration ends, the milestone passes, now you must move on.