Letter 1647: The spiritual life is a journey with a beginning, a middle, and an end.

To Peter. The Christian faith is not a system of abstract doctrines but a way of life rooted in the person and work of Jesus Christ. The person who knows all the doctrines but does not know Christ has missed the heart of the matter, for the doctrines are not ends in themselves but signposts pointing to a Person. Theology is not an intellectual exercise but a love affair — a passionate pursuit of the One who is Truth itself. When theology becomes merely academic, it withers into scholasticism; when it is animated by love, it blossoms into wisdom. The greatest theologians have always been the greatest lovers of God — Athanasius, Basil, Gregory, Chrysostom — and their writings burn with a fire that merely clever books can never kindle. Let your study of the faith therefore be always a study of Christ, and let your knowledge of doctrine be always a knowledge of the One whom the doctrines describe, so that your learning may not merely inform your mind but transform your heart.