You are the broken world and the act of changing it.

"So here’s the thing about changing the world. It turns out that’s not even the question, because you don’t have a choice. You are going to change the world, because that is actually what the world is. You do not pass through this life, it passes through you. You experience it, you interpret it, you act, and then it is different. That happens constantly. You are changing the world. You always have been, and now, it becomes real on a level that it hasn’t been before.

And that’s why I’ve been talking only about you and the tension within you, because you are—not in a clichéd sense, but in a weirdly literal sense—the future. After you walk up here and walk back down, you’re going to be the present. You will be the broken world and the act of changing it, in a way that you haven’t been before. You will be so many things, and the one thing that I wish I’d known and want to say is, don’t just be yourself. Be all of yourselves. Don’t just live. Be that other thing connected to death. Be life. Live all of your life. Understand it, see it, appreciate it. And have fun."

(From Joss Whedon's commencement address at Wesleyan University)