The mystic and esoteric Teachings are to be found burning as a bright flame in the heart of the Christian Religion. Many who have been reared in the Christian churches feel that surely the Truth must be found there, rather than in so-called “foreign religions,” while many others have been erroneously led to believe that there was no Truth at all to be found in the Christian Teachings. For both of these classes this book is specially designed, although its interest will appeal to every student of philosophy, religion and occultism. The Truth IS to be found in the Christian Religion—all true occultists know this. Under the exoteric or commonly accepted forms of all religions there is always to be found an esoteric or hidden teaching—and Christianity is no exception to this rule. This is no new discovery—the early Fathers of the Christian Church knew this full well—the Gnostics taught Mystic Christianity—the Early Church was Mystic in its essence and inner circles. And all advanced students of Occultism, of whatever faith, venerate the Founder of Christianity, and find in His teachings a source of joy, delight and wisdom unknown to those who merely recognize the outer forms and teachings. This is why we feel so earnestly impressed to make public these Mystic Truths at this time. There is no reason for the Christian to forsake his faith and “run hither and thither after new gods”—he may find the very Truth imbedded in his own religion. Every true occult doctrine is contained there—every fundamental mystic truth may be found in Mystic Christianity if you but possess the key. There is but one TRUTH, and it is found in all religions, under the surface of the material doctrines. In the heart of the religion in which you were born and reared there is to be found the SACRED FLAME burning ever brightly, and subject ever to the Perpetual Adoration of the Spiritually Illumined.