(CNN)About ten months ago, I met a man named Harry Shaughnessy at a conference for atheists in the Bible Belt.
At first, he struck me as a typical atheist: he's white, upper-middle class and college-educated.
But the more I talked to Harry, the more I realized that he's not a typical anything. He's part of a bevy of former believers who, while trying to raise atheist children and create secular communities, are tapping an unlikely source: the religions they left behind.
To read about Harry's journey from the Catholic Church to atheism, which ends with a surprising twist, click here.