The spiritual function of fierce terrain (in the apophatic tradition) is to bring us to the end of ourselves, to the abandonment of language and the relinquishment of ego. A vast expanse of jagged stone, desert sand, and towering thunderheads has a way of challenging all the mental constructs in which we are tempted to take comfort and pride, thinking we have captured the divine. The things that ignore us save us in the end.
There was simply silence. And in that silence, as I gazed up at the sunlight sparkling through those high upper windows, or followed a secret tug drawing me down into my own heart, I began to know a prayer much deeper than "talking to God."
"Somewhere in those depths of silence I came upon my first experiences of God as a loving presence that was always near, and prayer as a simple trust in that presence.