Answer:
After tremendous suffering, the mariner, alone one night in the moonlight, watches water snakes moving in "tracks of shining white." He notices their beautiful colors, "blue, glossy green, and velvet black" in a "flash of golden fire." At this moment, the mariner's ignorance and selfishness drops away as he opens his heart to the glories of God's creation. It was the moment of The Rime of the Ancient Mariner...........................