This book is a biography rather than a doctrine of the Holy Spirit. Focusing on the Holy Spirit as a person, the author portrays the Spirit as the one who has done and is doing every work of the creation and re-creation. The Holy Spirit is the most important and basic substance, binding together the three persons of the divine Trinity into one. The name of the Holy Spirit as well as of God the Father is "Jesus," and it is strongly recommended to baptize "in the name of Jesus Christ" instead of "in the name of the Father, of the Son, and of the Spirit." The Holy Spirit would like to be acknowledged as true God and true Lord by all his servants all over the world.