There have been periods when I’ve found myself submerged in motherhood for years at a time, lost myself willingly in the maze of my children’s needs and triumphs. Then suddenly one day I come to, catch sight of myself in the mirror, and think, What was I doing again? in a way that’s totally appropriate if you went into the living room to fetch something and had a distracting thought about an old lover, but not ideal if your reverie has lasted three years.

