[Spiritual] Nature is the glass reflecting God, as by the sea reflected Is the sun.—Young, Night Thoughts.
The [mortal] mind is like a double mirror in which reflections of self within self multiply themselves 'till they are undistinguishable.
J. H. Newman, Grammar of Ascent.
In the first part of St. John's Gospel we read that "there was a man sent from God, whose name was John. The same came for a witness, to bear witness of the Light, that all men through him might believe." We are shown in Christian Science that the "Light" to which John referred was not the personal Jesus, but the incorporeal Messiah or Christ. In fulfilment of the Baptist's prophecy, the great Teacher later announced himself as "the light of the world," saying. "He that followeth me shall not walk in darkness, but shall have the light of life." Again, in his Sermon on the Mount, Jesus informed his hearers that in so far as they were faithful to his teachings, they also would become "the light of the world," adding, "Let your light so shine before men, that they may see your good works, and glorify your Father which is in heaven."