Without music no discipline can be perfect, for there is nothing without it. For the very universe is held together by a certain harmony of sounds, and the heavens themselves are made to revolve by the modulation of harmony. Music moves the feelings and changes the emotions... The very beasts also, even serpents, birds, and dolphins, music incites to listen to her melody. And every word we speak, every pulsation in our veins, is related by musical rhythms to the powers of harmony.
Silence is really vital for the human heart. You see, the human heart can't live with constant sound or noise. It needs silence in order to heal itself. The only two things that are ultimately required for spiritual homecoming are stillness and silence. If, into your day, you can build little windows of silence and little windows of stillness, you will never lose touch with your deepest voice. You will never lose touch with your most secret belonging. Even though you walk and talk and act in the world, you will never leave the inner, tender home of your own soul.