This is a complete presentation of the workings of the human spirit, soul, and body. The book aims to deliver people from the tyranny of self-life with its carnality and from the domination of the passions and lusts of the flesh. It attempts to lead them to the full salvation of Christ. It is not to be taken as a manual but as a guide to true spirituality. It is recommended that this three-volume work be read quickly through once. Then, lay it aside and wait until the Holy Spirit leads one into a certain stage of spiritual life when knowledge and understanding are needed. Turn, then to the special section of the book dealing with that particular experience for enlightenment. Thus, it will be realized that “in Thy light, shall we see light” (Ps. 36.9 ). May God use this book to help people in their journeying towards the spiritual.