In a world that judges most things in an intellectual way, and expects to verify its standards against what can be weighed, measured or in some way perceived by the senses, it would be foolish to expect everyone to see, behind the troubles of our times, the need for a new spiritual vision. But this book is written for the many that have become aware of that need: for them it attempts to explore what was understood in the past and could be understood again to day; not to invent or re-invent a new religion, nor to explore the religions of other civilizations, as so many have already done; to take another look at the Christian religion, but not just at the same old things that everyone has looked at - at least since the time of Wesley and Luther - but at some other aspects of Christianity that are little known today. After ten years of investigation, there is little doubt in my mind that, in its early days, Christianity had answers to questions that today take people to other lands, other times, other faiths for their answers. As this book will show, there is also little doubt that most of those answers still exist - within Christendom, but tucked away in its inaccessible corners - and I have slowly become certain that with sufficient effort these answers can be rediscovered and restored to use for modern man, as part of a spiritual reawakening which has already begun but has not yet taken definite form. Whether we believe that a spiritual reawakening is now taking place, or believe only that it should do so, with either of these viewpoints we will see the value of recovering a lost Christian tradition of knowledge about the inner experience that some of the most valued members of the church - among them saints, bishops, abbots, monks, hermits and 'learned doctors' - have accumulated over nearly twenty centuries, but particularly what they learned in the early days of the church, when the initial energy given by gospel and resurrection was still at its most intense.