The only means of authentic spiritual communication is the interior speech which is uttered in the silence from which the Word emerged, and which is only heard in the silence.
Dolphins can live in the deepest water without danger because they regularly come to the surface and breathe in air that sustains them. We, too, must rise in prayer into the spiritual realm. To pray is to breathe in God's life-giving spirit that gives life and peace, even in this world.