Every weekday at precisely 1:30 p.m. I get this mysterious feeling in my chest of restlessness and intense longing. I distract myself with busywork- cleaning the kitchen, balancing the checkbook, pulling weeds. And then, at 3:12 p.m. I greet my boys at the school yard gate and the feeling evaporates when they take my hand and tell me of their adventurous day at school.