Sound gives to the consciousness an evidence of its existence, although it is in fact the active part of consciousness itself which turns into sound. The knower, so to speak, becomes known to himself; in other words the consciousness bears witness to its own voice. It is therefore that sound appeals to man. All things being derived from and formed of vibrations have sound hidden within them, as fire is hidden in flint. And each atom of the universe confesses by its tone: "My sole origin is sound." If any solid or sonorous body is struck it will answer back: "I am sound."

Sound has its birth, death, sex, form, planet, god, color, childhood, youth and age. But that volume of sound which is in the abstract - beyond the sphere of the concrete - is the origin and basis of all sound.

Both sound and color make their effect on the human soul according to the law of harmony: to a fine soul color appeals, and to a still finer soul sound. Tone has either a warm or a cold effect, according to its element, since all elements are made of different degrees of vibrations. Therefore sound can produce an agreeable or a disagreeable effect upon man's mind and body, and has its healing effect in the absence of herbs and drugs - which also have their origin in vibrations.

Manifestations being formed of vibrations, the planets are the primal manifestations, each planet having its peculiar tone; therefore every note represents one planet. Every individual therefore has a note peculiar to himself which is according to his birth planet. For this reason a certain tone appeals to a particular person according to the grade of his evolution.