Increasingly, the future is becoming a theme for theological reflection. In the background we can detect a growing concern among many people for the future of faith.

How does the promise of an eternal future affect the present? How does faith, our hope for life in the future, affect the way we live and interact with the world today? In order to answer these questions, Joseph Ratzinger reflects on such questions as the following: What precisely is faith? What does it have to do with knowledge, modern philosophical trends, technology, and our modern world? What is faith's relationship to truth? And finally, what consequences do the answers to these questions have for the future of our world and our Church?

The problem of the future assails not only the believer. In the ever more rapidly advancing process of technological change, man is confronted with enormous opportunities, but also with colossal perils. For him, the future is not only promising but also a possible nightmare. He cannot avoid asking what part faith can play in building tomorrow's world.