And, moreover, if you are desirous of pursuing your investigations of psychic and astral phenomena, you will find it of great importance to cultivate and develop these three principles in your mind. For, then you will be able to brush aside all distracting influences, and to proceed at once to the task before you, with power, clearness and strength of purpose and method. In the following chapters I shall give you a more or less detailed presentation of the various phases or forms of psychic influence. Some of these may seem at first to be something independent of the general principles. But I ask that you carefully analyze all of these, so as to discover that the same fundamental principles are under and back of each and every instance presented. When you once fully grasp this fact, and perfect yourselves in the few fundamental principles, then you are well started on the road to mastery of all the various phases of psychic phenomena. Instead of puzzling your mind over a hundred different phases of disconnected phenomena, it is better to master the few actual elementary principles, and then reason deductively from these to the various manifestation thereof. Master the principles, and then learn to apply them. LESSON XVII. PERSONAL PSYCHIC INFLUENCE OVER OTHERS Psychic Influence, as the term is used in this book, may be said to be divided into three general classes, viz., (1) Personal Influence, in which the mind of another is directly influenced by induction while he is in the presence of the person influencing; (2) Distant Influencing, in which the psychic induction is directly manifested when the persons concerned are distant from one another; and (3) Indirect Influence, in which the induction is manifested in the minds of various persons coming in contact with the thought vibrations of the person manifesting them, though no attempt is made to directly influence any particular person. I shall now present each of these three forms of psychic influence to you for consideration, one after the other in the above order. Personal Influence, as above defined, ranges from cases in which the strongest control (generally known as hypnotism) is manifested, down to the cases in which merely a slight influence is exerted. But the general principle underlying all of these cases is precisely the same. The great characters of history, such as Alexander the Great, Napoleon Bonaparte, and Julius Caesar, manifested this power to a great degree, and were able to sway men according to their will. All great leaders of men have this power strongly manifested, else they would not be able to influence the minds of men. Great orators, preachers, statesmen, and others of this class, likewise manifest the power strongly. In fact, the very sign of ability to influence and manage other persons is evidence of the possession and manifestation of this mighty power.