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.
Sit in meditation ! But do not think ! Look only at your mind ! You will see thoughts coming into it ! Before they can enter, throw these away from your mind till your mind is capable of entire 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.