This book is the distilled essence of years of Bible and metaphysical study, and of the many lectures I have delivered. It would have been easier to have made it twice its present length. My object, however, is to present the reader with a practical manual of spiritual development, and, with this end in view, I have condensed the subject matter into the smallest compass possible, because, as every student knows, conciseness of expression is of the greatest assistance in mastering any subject.