I wonder if all mothers feel like this the moment they realize their daughters are growing up- as if it is impossible to believe that the laundry I once folded for her was doll-sized; as if I can still see her dancing in lazy pirouettes along the lip of the sandbox. Wasn't it yesterday that her hand was only as big as the sand dollar she found on the beach? That same hand, the one that's holding a boy's; wasn't it just holding mine, tugging so that I might stop and see the spiderweb, the milkweed pod, any of a thousand moments she wanted me to freeze? Time is an optical illusion- never quite as solid or strong as we think it is. You would assume that, given everything, I saw this coming. But watching Kate watch this boy, I see I have a thousand things to learn.