This book is for serious reflection by believers who believe that in Christ, God has truly come into our world, and are asking themselves - why has this coming not made a bigger difference? This book is for all kinds of Christians, and people curious about Christianity, and considers the failure of Christianity to truly transform the world, asks why, and reflects on various insights gathered over time. For it is not that God has failed to give us the power to make this world truly a heaven on earth. It is that most of us have never tried to live out its message. The reader is invited to come on a quest or journey with the author. Explore the unfulfilled promise of Christianity, but beware - when you go out on a journey or a quest, you might never come back. This book is recommended for small groups, as a starting point for reflection and discussion.