Dietrich von Hildebrand understood our readiness to change not only as the beginning of the Christian life, but also as the source of its continuance and completion. It is, one could say, the fundamental answer to the call, the vocation, to Christ. This was not a mere readiness to change a little here or a little there, but to be changed radically, at all levels of one's being, to be made "a new creature in Christ."