The religious literature of the world is filled with such things. Take Spiritualism from Christianity and the whole edifice crumbles. All religions, so far as I know, are based on Spiritualism—on communications received from angels, from spirits.
I do not say that all the mediums, ancient and modern, were, and are, impostors—but I do think that all the honest ones were, and are, mistaken. I do not believe that man has ever received any communication from angels, spirits or gods. No whisper, as I believe, has ever come from any other world. The lips of the dead are always closed. From the grave there has come no voice. For thousands of years people have been questioning the dead. They have tried to catch the whisper of a vanished voice. Many say that they have succeeded. I do not know.
Question. What is the explanation of the startling knowledge displayed by some so-called "mediums" of the history and personal affairs of people who consult them? Is there any such thing as mind-reading or thought-transference?
Answer. In a very general way, I suppose that one person may read the thought of another—not definitely, but by the expression of the face, by the attitude of the body, some idea may be obtained as to what a person thinks, what he intends. So thought may be transferred by look or language, but not simply by will. Everything that is, is natural. Our ignorance is the soil in which mystery grows. I do not believe that thoughts are things that can been seen or touched. Each mind lives in a world of its own, a world that no other mind can enter. Minds, like ships at sea, give signs and signals to each other, but they do not exchange captains.
Question. Is there any such thing as telepathy? What is the explanation of the stories of mental impressions received at long distances?
Answer. There are curious coincidences. People sometimes happen to think of something that is taking place at a great distance. The stories about these happenings are not very well authenticated, and seem never to have been of the least use to anyone.
Question. Can these phenomena be considered aside from any connection with, or form of, superstition?
Answer. I think that mistake, emotion, nervousness, hysteria, dreams, love of the wonderful, dishonesty, ignorance, grief and the longing for immortality—the desire to meet the loved and lost, the horror of endless death—account for these phenomena. People often mistake their dreams for realities—often think their thoughts have "happened." They live in a mental mist, a mirage. The boundary between the actual and the imagined becomes faint, wavering and obscure. They mistake clouds for mountains. The real and the unreal mix and mingle until the impossible becomes common, and the natural absurd.
Question. Do you believe that any sane man ever had a vision?
Answer. Of course, the sane and insane have visions, dreams. I do not believe that any man, sane or insane, was ever visited by an angel or spirit, or ever received any information from the dead.