MANKIND has largely believed that sight is physical, but at the same time it has also attributed a mental nature to sight. Men have responded to the demonstration of all sorts of mental propositions with the laconic statement, "I see!" Seeing has always been connected more or less in the thought of men with the idea of intelligence; even what they have been pleased to denominate as merely physical sight has been recognized as a means of information. One point in connection with all sight has been universally agreed upon: that it is most desirable for sight, either so-called physical or mental, to be always clear—that nothing be allowed to becloud one's vision.
From the earliest Bible times seeing has been considered synonymous with both the inner and the outer vision. It was said of Moses that "he endured, as seeing him who is invisible;" and when Christian Science was revealed it interpreted, for all time, not only spiritual sight but all spiritual sense. In "Science and Health with Key to the Scriptures"(p. 505) Mrs. Eddy definitely states, "Spiritual sense is the discernment of spiritual good;" and herein is God's remedy for all blindness.
The Christian Scientist is therefore largely concerned with clear-sightedness. From the moment he begins to realize that God has given Christian Science to the world in order that all men may learn to know and understand the things of Spirit, God, he becomes conscious of the necessity of a purpose always to see clearly. To be willing to stumble along without clear-sightedness, without spiritual vision, is to be in the darkness of material sense, where there is neither stability nor permanent satisfaction. On the contrary, to awaken to the glorious possibility of "the discernment of spiritual good" is to enter upon the incomparable bliss of understanding and demonstrating one's unity with God.