Without the Light, the journey of life is fraught with dangers and no traveler's vision can penetrate the haze of self-centeredness. The ímage of God as Light that suffuses all the universe is one that unítes the divine transcendence and immanence... All of creation is replete with "signs" of God's presence, but they cannot be discerned without the Light.
I believe that works that touch the Divine or teach us or are still with us centuries after their creation are the ones that did not come out of a place of power or control or techniques, but came at the moment when the heart let go and God answered the question.