One of the most common methods of exploring the subconscious mind is the method of automatic writing. I have never tried this myself, but tens of thousands of people are sitting every night with a "ouija" in front of them, holding a pencil on a piece of paper and letting their subconscious minds write what they please. Most of them are hoping to get messages from the dead--a problem which we shall discuss in the next chapter. Suffice it for the moment to say that automatic writing and table rapping and other devices of mediumship have opened up to us a vast mass of subconscious mentality. A part of the scientific world still takes a contemptuous attitude and calls this all humbug, but many of our greatest scientists have been persuaded to investigate, and have become convinced that in this mass of subconsciousness there is mingled, not merely the mind of the medium, but the minds of all those present, and possibly other minds as well. For my part, I do not see how any one can study disinterestedly the proceedings of the Society for Psychical Research and not become convinced that telepathy at least is one of the powers of the subconscious mind. Telepathy is what is popularly known as "thought transmission." Every one must know people who are what is called "psychic," and will know what is happening to some friend in another part of the world, or will go upstairs because they "sense" that some one wants them, or will go to the door because they "have a hunch" that some one is coming. And maybe these things are only chance, but you will be unscientific if you do not take the trouble to read and learn what modern investigators have brought out on such subjects.