H.P.Blavatsky's The Secret Doctrine testifies to the existence of a Divine Plan, the knowledge of which the author of this book has sought to convey. Since the full and complete exposition of The Secret Doctrine is only attainable by means of the 'seven keys' to its understanding, the author has also attempted to present this book as a guide towards their understanding, expressly for those who wish to read and study these ancient teachings. It is his hope that this work may prove to be of assistance to all who read it.