The author is a world authority on Orthodox thought. This book explores and explains the enduring influence of some of the world's greatest mystical theologians. 1. Introduction: Who are the Orthodox 2. Thinking and doing, being and praying: Where do we start? 3. Who is God? The doctrine of the Holy Trinity; apophatic theology 4. Creation; Wisdom of God (Sophia); Angels and humankind 5. What went wrong? Sin and death 6. Who is Christ? The life of Christ; the Paschal mystery; Christology 7. What is it to be human? Being in the image of God; becoming God; deification. 8. Icons and Sacraments: the place of matter in the divine economy 9. Time and the Liturgy 10. Where are we going? The last things and eternal life