A Golden thread runs through the writings of Mary Baker Eddy which, if followed, will lead the student of Christian Science to the understanding of man's dominion over all the earth. This golden thread is the spiritual idea, Christ, which shows mankind all truth. All through her textbook, "Science and Health with Key to the Scriptures," and her other writings, Mrs. Eddy makes abundant use of the spiritual idea, Christ, in giving to the world God's revelation. The Bible contains many references to this idea in both the Old and the New Testament. However, it is referred to in different ways. (John 14:6): "I am the way, the truth, and the life: no man cometh unto the Father, but by me." These references to the Christ, or divine idea, should be spiritually interpreted. This idea existed even before Abraham, but through the centuries a clearer and truer perception of it has come to those persons who have been spiritually-minded enough to receive it into consciousness.
What is the office of the Christ, the spiritual idea? Why, simply to reveal God to men and to bring salvation from sin, disease, and death—the triad of error—to the world. Christ reveals the divine and only creator to be God, both Father and Mother. In revealing God, the spiritual idea necessarily destroys any material belief of life in matter, for God is Life. Therefore, all creation is spiritual. Man is not a creator, for Spirit, God, is the creator. When Spirit is consciously manifested, fleshly-mindedness or carnal-mindedness gives way to Truth. The immaculate idea, Christ, is forever divinely operating in consciousness and causing error to yield to Truth. Hence we see the practicability and demonstrability of the Christ in destroying whatever is wrong in the thinking of men.
To permeate daily thinking and acting with Christly affection and love is to hasten the day when mankind will learn that the impersonal Christ, Truth, overshadows the endless problems which cause fear in individual and collective consciousness. Whoever demonstrates receptivity to the Christ loses the fear and belief of a mind apart from God. He sees all men in their true being as fearless individual ideas, or children of God, doing God's work through Christ, the spiritual idea.