There is no alleviation for the sufferings of mankind except veracity of thought and of action, and the resolute facing of the world as it is when the garment of make-believe by which pious hands have hidden its uglier features is stripped off.
Silent is about needing to make a scene shorter by having physical things to cut to. That way, you can manipulate a character to the other side of the room. But, if they say the wrong thing, it might locate that action in a particular part of the scene. It's a mechanical need.