To begin to enter into the profound silence that resides in the depths of our beings is to begin to enter the realm of the Godhead beyond God. Beyond speech, beyond apprehension, is a realm of generative actuality, the realm of essential being out of which the Word is eternally begotten. Our silence is both and the clear road by which the Word proceeds most directly into our hearts.
And how does one go chasing after a glimpse of the uncreated Light? The Hesychasts, high on Mount Athos, bowed their heads upon their breasts, took a deep breath, and plunged in. What they plunged into was prayer. It began with a tack with which to fix the attention. It became breath itself, an inlet for the universe to invade one's body until the entire cosmos, drawn in, heaved out, was transformed into prayer. The body's posture was important. The breathing was to be carefully controlled so as to keep time with the words. Eventually the prayer, breathed in, united with their very blood and heartbeat; breathed out, it blessed the world. And some monks claimed after a while to have indeed seen the Light of the Transfiguration, uncreated energy beheld by bodily eyes.
~ from AND THE TREES CLAP THEIR HANDS by Virginia Stem Owens