It is not outer reality that silence reveals, but our own innerness. Silence is essentially a surrender to the holiness of the divine mystery – whether we use these words or not. An atheist, calming his or her spirit in the peace of silence, is irradiated by the same mystery, anonymous but transforming. We are to listen. To what? To silence.
There is a Receptive form of spirituality present to a degree in everyone... Here is a spirituality of listening, of waiting, where we say to our souls, "Be still," or "Rest awhile," or -- like the wise old woman --
"Sometimes ah sets and thinks, but sometimes ah jes sets."
Receptive spirituality has large moments of just "setting".