Steven Galloway said this quote

She felt an enveloping happiness to be alive, a joy made stronger by the certainty that someday it would all come to an end. Afterward she felt a little foolish, and never spoke to anyone about it. Now, however, she knows she wasn't being foolish. She realizes that for no particular reason she stumbled into the core of what it is to be human. It's a rare gift to under stand that you life is wondrous, and that it won't last forever.