Music is, and always will be, a method used by beings to bring about a unity between different vibrations, causing a harmonious note to the ear. In mystical fashion, one endeavors to achieve the same result with our intermingling vibrations of polarity. The thread, which binds in harmony, is the "music of the spheres." Its song plays continuously, but our ears cannot hear, unless our soul is tuned in.
Why has this Frenchman from France written his book in the United States to present to his friends today? Because loving the country and wanting to show his gratitude, he could find no better way of expressing it than in these two truths, intimately known to him [Jacques is blind] and reaching beyond all boundaries.
The first of these is that joy does not come from outside, for whatever happens to us it is within. The second truth is that light does not come to us from without; Light is in us, even if we have no eyes.