Quiet, contemplative prayer happens when we are still and open ourselves to the Spirit working secretly in us, when we heed the psalmist's plea: "be still and know that I am God." These are times when we trustingly sink into God's formless hands for cleansing, illumination, and communion. Sometimes spontaneous sounds and words come through us in such prayer, but more often we are in a state of quiet appreciation, simply hollowed out for God. At the gifted depth of this kind of prayer we pass beyond an image of God and beyond any image of self. We are left in a mutual raw presence. Here we realize that God and ourselves quite literally are more than we can imagine.
When an event stirs great sadness and grief in us, after the wailing and the tears and the tearing of our hair, there comes a time when we have to fall silent. It is even beyond prayer. Prayers, which are also offered up at such moments, do not substitute for silence. Silence is the ultimate prayer.
~ from COMING TO OUR SENSES by Jon Kabat-Zinn