In the first book of this series I stated the fact that I had never been interested in spiritualism. Consciously, I never had. Now, Dr. Alfred Adler, the head of what we may call the Ego School of analysis, says: “Often the negation is the assertion of an old interest that has become unconscious.” Yes.... My father was deeply interested in spiritualism, and I was born in an old house where ghosts were supposed to walk. My mother was afraid of the subject. My father died when I was thirteen. I was always a little afraid of my father. The first time I met Judge Hatch I told him that perhaps he had been my father in a “former incarnation.” He smiled, and said, “Maybe.” No microscopist had ever a greater interest in facts than I have. My scientific friends say, “A scientist was lost in you.” Other friends say, “You are a great psychic.” So there I found myself. In studying with the scientific half the phenomena of the psychic half, I am able to unify them. The _authority_ of the Church has been knocked from under us. We are adrift, we thinking humans of the early twentieth century, upon a sea of mind, stormtossed by winds of feeling. We were just beginning to believe in universal brotherhood--when universal war broke out. Our steersman seemed to have been washed overboard. Everybody wants to take the helm, distrusting his neighbor’s judgment. Is it any wonder that bewildered souls by thousands turned to automatic writing, seeking for guidance, for something _authoritative_? In childhood our parents guided us. Later the Church guided us--or tried to. Then science guided us--a little too far. And in the reaction we turned inward, to find (sometimes) the unconscious more troubled than the conscious. But in the Letters which follow there is no despair, only light and courage and hope. There seem to be two main streams in us, the mental and the instinctive. Bergson says, in his “Creative Evolution,” “There are things which intelligence alone is able to seek, but which, by itself, it will never find. These things instinct alone could find; but it will never seek them.” It was inevitable that modern psychology, with its constructive curiosity, should turn its attention to the religious beliefs of the past and present. There was no other way of understanding what really goes on in the minds of people. Some of these old beliefs proved, on examination, to be scientifically tenable. For instance, the Theosophists (who got the idea from the Hindoos) tell us there are two streams of evolution, the elemental and the human. Dr. C. J. Jung, the head of the Swiss school of Analytical Psychology, divides the stream of “energy” into two currents, one going forward and one going backward. And this duality of will Bleuler calls “ambitendency.” The difference is chiefly a difference of phraseology and associations.