"I've tried to etch together a blueprint, a map to navigate loss and motherhood, a pamphlet for survival, but the truth is: there's no such thing. That would be too predictable. When I was small, I used to spin the globe with my finger pressed into one spot with my eyes closed, and when it stopped I was supposed to read the place where my finger had pressed and that would be the place I lived as an adult. Most of the time I ended up in the middle of the ocean--vast blue space. There's so much that can't be explained. But the beauty is before the discovery, the moments spent wandering,...