Getting ready for an arrival … or a departure?

From Anthony Doerr’s (enjoyable) memoir, Four Seasons in Rome:
Having a baby is like bringing a noisy, inarticulate foreigner into your house and trying to guess what he likes to eat.
Later in the book, Doerr reverses the metaphor:
Maybe being a new parent is like moving to a foreign country. There is a Before and an After, an Old Life and a New Life. Sometimes we wonder who we were before. Sometimes we wonder who we are now. Sometimes our feet get tired. Sometimes we find ourselves reaching for our guidebooks.
We have made this trip before (the baby we are waiting for is #2), but it has been a while since we’ve had our passports stamped, and I find myself dusting off the guidebook in hopes of reminding myself of the terrain. Sleep schedules? Feedings? The landscape all looks different anyway, with a toddler on the scene. Like preparations for any big move, there are many details to iron out, rising anticipation, and a growing sense of bewilderment in the face of all we don’t know.