Now just notice how much this corresponds to what we know of the working of Thought-force. People whose minds are attuned to a certain pitch will receive the vibrations from the minds of others whose mental keynote is the same. And if one maintains a high positive keynote, he will not be affected by the vibrations emanating from the mind of another who may have a low negative pitch. The nearer to our pitch the mind of another may be, the more we feel the sympathetic vibrations in our own mind; the greater the difference in the pitch, the less we will feel in sympathy with him. This will account for the instinctive likes or dislikes that many of us experience when coming into the presence of other people. And how soon do people of kindred vibrations seek out and find each other in a mixed assembly. Many likes, unexplainable by any theory of personal appearance, etc., arise from this cause. And as the Marconi instruments may have their pitch changed, so are our mental keynotes changed from time to time as we adjust ourselves to new conditions--as we grow. This will explain why two people, who at one time seemed to be in perfect attunement with each other, will drift apart until at last they seem to have scarcely a thought or feeling in common, and yet both of them may be good people, really anxious to be helpful to the other. But this is not the only way in which the working of the Marconi system resembles the workings of the mind. I have often called your attention to the fact that the holding of certain mental attitudes resulted in the attraction to oneself of thought vibrations corresponding to the general character or the thought held in the mind of the person. Let a man be filled with the spirit of Jealousy, and everything seems to feed that feeling. He hears of cases of faithlessness on the part of other persons; every circumstance seems to confirm him in his belief. The actions of the loved one seem doubly suspicious--signs of guilt are seen in every expression, every move. He draws to himself the thought-waves of other minds vibrating on the same pitch--like attracts like. Let a man drop into the Fearthought condition, and immediately he feels the rush of Fear to his mind. Let him cast aside Fear, and attune himself to the Fearless pitch, and he feels an influx of Courage, Fearlessness, Confidence, Energy and other positive thoughts. And according to the character of your thoughts, will you draw to yourself people calculated to co-operate with you and be of assistance to you. Even things seem to shape themselves to fit in with the keynote you have sounded.