seth: why do people cry?
maggie: What do you mean?
seth: I mean...what happens physically?
maggie: Well...umm...tear ducts operate on a normal basis to lubricate and protect the eye and when you have an emotion they overreact and create tears.
seth: Why? Why do they overreact?
maggie:I don't know.
seth: Maybe...maybe emotion becomes so intense your body just can't contain it. Your mind and your feelings become too powerful...and your body weeps.