This tug-of-war often obscures what's also happening between us. I am your mother, the first mile of your road. Me and all my obvious and hidden limitations. That means that in addition to possibly wrecking you, I have the chance to give to you what was given to me: a decent childhood, more good memories than bad, some values, a sense of tribe, a run at happiness. You can't imagine how seriously I take that - even as I fail you. Mothering you is the first thing of consequence that I have ever done.

He defined me first, as parents do. Those early characterizations can become the shimmering self-image we embrace or the limited, stifling perception we rail against for a lifetime.

The mother is the most essential piece on the board, the one you must protect. Only she has the range. Only she can move in multiple directions. Once she's gone, it's a whole different game.

If John Lennon was right that life is what happens when you're making other plans, parenthood is what happens when everything is flipped over and spilling everywhere and you can't find a towel or a sponge or your "inside" voice.

My readers often say to me, 'If we lived next door to each other, we'd be best friends.' That is precisely what I wanted to say to smart, funny, self-effacing Ellen McCarthy after I finished reading The Real Thing. I loved every lesson laid out in a book that wouldn't dare to call itself a field guide to marriage but amounts to as much on every page. This is a deeply useful little book.

We'll bury our mothers and fathers - shuttling our children off for sleepovers, jumping on red-eyes, telling eachother stories that hurt to hear, about gasping, agonal breaths, hospice nurses, scars and bruises and scabs, and how skin papers shortly after a person passes. We will nod in agreement that it is as much an honor to witness a person leave this world as it is to watch a person come into it.

It is one thing to be a man's wife - quite another to be the mother of his children. In fact, once you become a mother, being a wife seems like a game you once played or a self-help book you were overly impressed with as a teenager that on second reading is puffy with common ideas. This was one of the many things I had learned since crossing over into the middle place - that sliver of time when childhood and parenthood overlap.