One of my favorite writers, Frederick Buechner, says a true vocation, or calling, is that place where the world's greatest need and a person's greatest joy meet. In retrospect, parenting was that calling for me, in that it called forth several better selves I didn't even know I had to meet the relentlessly human needs of our four children. And it gave me unimaginably deep joy as witness and midwife to their development into people who, to this day, fascinate and delight me as much as I love them. Some days, as I wait to hear my next call, I wonder if anything else can compare.