For both parties in a controversy, the most disagreeable way of retaliating is to be vexed and silent; for the aggressor usually regards the silence as a sign of contempt.
Beside all the small reasons we assign, there is a great reason for the existence of every extant fact; a reason which lies grandand immovable, often unsuspected behind it in silence.
If we look at the world around us, we see that we are conditioned to not listen deeply. Because isn't that what silence is? It's a listening, a deep wordless listening.