"I am the product of priests", Lacan once said of himself. Educated by the Marist Brothers (or Little Brothers of Mary), he was a pious child and acquired considerable, personal knowledge of the torments and cunning of Christian spirituality. He was wonderfully able to speak to Catholics and to bring them around to psychoanalysis. Jesuits flocked to his school. Freud, an old-style Enlightenment optimist, believed religion was merely an illusion...