Clairvoyant observations plus historical records -- these are the ingredients that enabled Charles W. Leadbeater to author this absorbing, in-depth study of the mystery schools of Egypt, Greece, Judea, the Middle Ages, and up to the emergence of Co-Masonry in the twentieth century. During his lifetime, Leadbeater used his rare capacity for "seeing" beyond the physical plane for many purposes. For instance, he observed and recorded the sub-atomic structure of a number of elements long before science had the capacity to determine such things. He has observed and recorded the multitude of forms and colors that are created as a result of our thoughts, plus the shapes and colors of the more subtle physical bodies of man. In this book then combining seership and science, the author has put together many fascinating, hitherto unknown facts about the mystery schools and their rites. It is striking indeed to note. the many similarities between these schools in spite of distance and time. Here is a common "mystery-bond" running through otherwise disparate cultures. Rites such as these have emerged in this century as Freemasonry.