The days seem long but the years are quickly passing. As I typed that, I recalled saying something similar in the early years of motherhood: the days are long and the weeks fly by.  I never thought about the swift passage of time in terms my own mortality but in terms of our children growing taller, learning new things—getting older. Now I think of them as young —in their 20’s, 30’s and 40’s— so much life ahead while our years are swiftly slipping away. Early on, older women would tell me to enjoy the children while they’re young, it’ll go so…