Color and sound are not only the language in which one communicates with the life without, but also the language in which one communicates with the life within. One might ask how it is done. We can see the answer in certain scientific experiments. Special plates are made, and by speaking near such a plate marks are made upon the plate with sound and vibrations. Those marks make either harmonious or inharmonious forms. If that is true, then every person, from morning till evening, is making invisible forms in space by what he says. He is creating invisible vibrations around him, and so he is producing an atmosphere. Therefore it is that one person may come into the house, and before he speaks you are tired of him, you wish to get rid of him. Before he has said or done anything you are finished with him, you would like him to go away, for in his atmosphere he is creating a sound; a sound is going on which is disagreeable. There is another person with whom you feel sympathy, to whom you feel drawn, whose friendship you value, whose presence you long for; harmony is continually created through him. That is sound too.