"People talk about crying from happiness and it sounds stupid-crying from happiness. I never knew what it meant. It's not really happiness that makes the tears. It's everything at once, everything that's good and sad and wonderful all at once, except the things that are wonderful mean so much more than the sad things. Crying from happiness, right there, sitting in front of the computer, reading Alicia's e-mail."
Chapter 28 Looking Again Page #251 3rd last paragraph.