Again and again, he shows us how we are the living temples of the Holy Ghost and how our souls are God's greatest masterpiece—because they are made in His own Image and Likeness. Of the Divine Tenant we possess within us, Fr. O'Sullivan says, “The Holy Ghost does not only give His wonderful help to Apostles, to martyrs, to missionaries, but to all Christians without exception, if only they will ask Him as they should." (Page 39). The greatest tragedy, he points out, is that many Christians never pray to this Divine Guest within their souls. Therefore, it is to help us understand, at least a little, the Incomparable Treasure we Christians possess within ourselves as a result of Baptism that the author has written this book – but also to teach us how to help ourselves in the most unfailing way by praying often and fervently to the Holy Ghost for assistance in all our needs.