Silence itself

The true contemplative is not one who prepares his mind for a particular message that he wants or expects to hear, but is one who remains empty because he knows that he can never expect to anticipate the words that will transform his darkness into light. He does not even anticipate a special kind of transformation. He does not demand light instead of darkness. He waits on the Word of God in silence, and, when he is “answered,” it is not so much by a word that bursts into his silence. It is by his silence itself, suddenly, inexplicably revealing itself to him as a word of great power, full of the voice of God.

Thomas Merton
The Climate of Monastic Prayer