As long as the soul is not still there can be no vision, but when stillness has brought us into the presence of God, then another sort of silence, much more absolute, intervenes: the silence of a soul that is not only still and recollected but which is overawed in an act of worship by God's presence.
Music was bestowed on humankind for the sake of effecting harmonious revolutions of the soul within us whenever its rhythmic motions are disturbed. Thus when the soul has lost its harmony, melody, and rhythm, music assists in restoring it to order and concord.