You will note that my purpose in this section of our treatise is to evoke interest and enquiry and to incite students to scientific, statistical and analytical investigation. Only in this way will my basic premises be proven and eventually substituted for the present unsatisfactory methods - methods which most astrologers who have any real capacity and insight regard as deplorable and unsatisfactory. The ruler of Sagittarius from the orthodox angle is Jupiter, and from the standpoint of the path of discipleship it is the Earth itself. Mars governs this sign from the standpoint of the Hierarchies involved. The most interesting fact which emerges as we study the Mutable Cross as a whole is connected with the rulers of all the four signs. From the point of view of orthodox astrology, only two planets rule or govern all the four signs; these are Jupiter and Mercury. Mercury governs Gemini and Virgo, whilst Jupiter governs Sagittarius and Pisces. The reason for this is obvious if you study the nature of the rays which express themselves through these signs. Mercury is the agent or the messenger of the fourth Ray of Harmony through Conflict, whilst Jupiter is the medium for expression of the second Ray of Love-wisdom. These two rays govern the mass of men upon the Mutable Cross and are closely concerned with the mass incarnation of the fourth Creative Hierarchy. Their function is to fuse and blend into one cooperative whole the great dualities expressing themselves through the fourth kingdom in nature. The significance of this will be [185] obvious. It is easily apparent how, through the influences of Mercury and Jupiter, material desire can be transmuted into divine love, and the conflict which is the distinguishing characteristic of the human family can be instrumental in resolving dissonance into harmony. The definite pattern and direction of this process has to take form upon the Mutable Cross before the energies of the Fixed Cross can change the ambitious selfish man into the selfless disciple. All this has perforce to be initiated upon the Mutable Cross which is essentially and significantly the Cross of the mutable, fluidic, restless mind and it is on this Cross that the mind nature is finally developed and begins its integrating control of the personality. When this process is proceeding, the Mutable Cross experience is over and the Cross of Discipleship begins to play its part.