Symphonies aim at healing the soul by taking human emotions and concerns and, through the alchemy of art, make us somehow feel better about all of life--and us. Music touches something higher in us directly. All of the arts touch something that is beyond the ordinary machinations of life. And this "something higher and more" makes even the most homespun art somehow therapeutic.
Silence speaks, the contemplatives say. But really, I think, silence sorts. An ordering instinct sends people into the hush where the voice can be heard.