In a terse little sentence, which if heeded would revolutionize human thinking and bring to light the solution of all humanity's problems, Mary Baker Eddy declares in the Christian Science textbook, "Science and Health with Key to the Scriptures" (p. 492), "For right reasoning there should be but one fact before the thought, namely, spiritual existence." The student of Christian Science will do well to ponder this statement and realize its deep significance. If he consults the Concordances to Mrs. Eddy's writings, he will find many references to the right mode of reasoning and the wrong, and will be impressed with the numerous passages which couple reason with revelation. Actually there can be no right reasoning without some measure of revelation, for to be right, conclusions must be deduced from an infallible premise; and the fact of God's allness, as revealed through the Science which expounds and demonstrates Him, affords the only such premise.
Christian Science reveals God as infinite. Beyond and outside the range of His infinitude nothing exists or is real. Within His own infinitude He is perpetually expressing Himself, His own nature, law, substance, and power. God is the indivisible One, comprehending within Himself both noumenon and phenomena. In His omnipresence is no possibility of misrepresentation; in His omnipotence is no destructive force; in His oneness is no conflict. He is unerring divine Mind, of whom the Bible says (Job 23:13), "He is in one mind, and who can turn him?" He is Love which is incapable of hate, Life which knows no death, Spirit which excludes all possibility of matter. He is divine Principle, the one and only cause, constituting every effect. Furthermore, He is Soul, immortal consciousness, sinless substance, incapable of defect, deterioration, or decay. And, finally, God is Truth, immutable reality, termed in Scripture "the Rock" (Deut. 32:4). This is the premise from which all correct conclusions must be deduced, and this truth is power wherever it is realized.
Spiritual existence is discernible only through spiritual sense, which refutes material sense, and as the emanation of Principle spiritual existence, evidencing God, is inviolable. No destructive force enters there, no element of fear, uncertainty, confusion, or lack. Spiritual existence is the only existence. In it is unfolded the infinitude of Love, where hate is unknown, the continuity of Life, uninterrupted by birth or death. In spiritual existence man does not start as a material embryo, an undeveloped consciousness, and through a process of growth, education, and experience arrive at a point of relative perfection, only to decline and eventually disappear in death. This is the mortal dream, which neither limits nor impairs reality. Spiritual existence includes all the phenomena of real being. Man has none other than spiritual existence, since God is his Life, and as God's likeness he exists now and forever at the standpoint of perfection. The understanding that Life is Spirit ushers thought into the realm of the real and demonstrates the spiritual fact of the omnipresence of good, in which harmony is the natural and inevitable law of being.