Let us now take another example of work which the unconscious mind is called upon to perform; an example which we are accustomed to view without question or thought, which is comparatively commonplace, and which we dismiss summarily by referring to it as “habit.” The accomplished pianist reads the music in front of him consciously, but he is not conscious of the extremely rapid translation which takes place from the brain to the fingers, so as to produce complicated movements on the key-board. And if we examine it carefully, we shall find that something very wonderful has actually taken place outside his consciousness. When he was first learning to play, he looked at the note on his music, and said to himself “That is C.” He looked at the key on the piano, and repeated “That is C.” He was taught that a particular finger must be placed on that particular note when playing in a certain key. He was taught that it had to be hit in a particular way and held down for a particular time, according to the size and shape of the note he was reading on the sheet of music in front of him. He was further taught that in order to modify any sound in a particular manner, he could use his feet on one or other of the pedals, and must be extremely careful to put his feet down and lift his feet up again at exactly the right moment. He was taught that when certain symbols, known as sharps and flats, preceded the notes at the beginning of his piece of music, the whole scheme of fingering would be different. And, at first, he had laboriously to go through the process of watching first the music and then the key-board, and of _thinking_ at each point what he should do with his fingers and with his feet, and how he should do it, and for what period he should keep on doing it. Now, the whole process is gone through with half-a-million notes which he has never seen before, many of them played simultaneously, and with an exactitude which he never attained when he was consciously thinking. Whatever may be the nature of the unconscious action which is taking place, all he has in consciousness is the music in front of him, and the final sound that he is producing, together with the emotions which these called forth in him as a result of the whole. Can there be any doubt left that a complicated unconscious process of the same kind is taking place?