Williams writes a selected history of Christian spirituality from the New Testament to St. John of the Cross. It highlights particular thinkers and is heavy on the emphasis of suffering, of darkness, of the wounding coming from the Christian life, and the transformation such wounding can provide. "If we believe we can experience our healing without deepening our hurt, we have understood nothing of the roots of our faith..." (11) Not to make it sound dour as it is a delightful delving into a spirituality of conflict, centered on Jesus crucified. He particularly explores the New Testament, Ignatius, Irenaeus, Clement, Origen, Athanasius, the Cappadocian Fathers (especially Gregory of Nyssa), Augustine, Antony, Cassian, Bernard, Dionysius, Aquinas, Eckhart, the late medieval mystics, Luther (in a brooding chapter), and St. John of the Cross and offers deep insight (almost rehabilitating Eckhart for me) and sometimes frank acknowledgement of limitations (especially with Clement's "internalizing" of the gospel and Dionysius, before his rehabilitation by Maximus). He has good discussions of martyrs, gnosticism, Platonism, and monasticism
"The end of the believer's life is knowledge of God in conformity to God. Knowledge of God is not a subject's conceptual grasp of an object, it is sharing what God is - more boldy, you might say sharing God's 'experience'. God is known in and by the exercise of crucifying compassion; if we are like him in that, we know him."