Mary Baker Eddy’s Science and Health, With Key to the Scriptures has been in print continuously since it was first published in 1875.
In the year 1866, I discovered the Christ Science or divine laws of Life, Truth, and Love, and named my discovery Christian Science. God has been graciously preparing me during many years for the reception of this final revelation of the absolute divine Principle of scientific mental healing.
The apodictical Principle points to the revelation of Immanuel, “God with us,”—the sovereign ever-presence, delivering the children of men from every ill “that flesh is heir to.” Through Christian Science, religion and medicine are inspired with a diviner nature and essence; fresh pinions are given to faith and understanding, and thoughts acquaint themselves intelligently with God.
Feeling so perpetually the false consciousness that life inheres in the body, yet remembering that in reality God is our Life, we may well tremble in the prospect of those days in which we must say, “I have no pleasure in them.”
Whence came to me this heavenly conviction—a conviction antagonistic to the testimony of the physical senses? According to St. Paul, it was “the gift of grace of God given unto me by the effectual working of His power.” It was the divine law of Life and Love, unfolding to me the demonstrable fact that matter possesses neither sensation nor life; that human experiences show the falsity of all material things; and that immortal cravings, “the price of learning love,” establish the truism that the only sufferer is mortal mind, for the divine Mind cannot suffer…
Christian Science reveals incontrovertibly that Mind is All-in-all, that the only realities are the divine Mind and idea. This great fact is not, however, seen to be supported by sensible evidence, until its divine Principle is demonstrated by healing the sick and thus proved absolute and divine. This proof once seen, no other conclusion can be reached.
For three years after my discovery, I sought the solution of this problem of Mind-healing, searched the Scriptures and read little else, kept aloof from society, and devoted time and energies to discovering a positive rule. The search was sweet, calm, and buoyant with hope, not selfish nor depressing. I knew the Principle of all harmonious Mind-action to be God, and that cures were produced in primitive Christian healing by holy, uplifting faith; but I must know the Science of this healing, and I won my way to absolute conclusions through divine revelation, reason, and demonstration. The revelation of Truth in the understanding came to me gradually and apparently through divine power. When a new spiritual idea is borne to earth, the prophetic Scripture of Isaiah is renewedly fulfilled: “Unto us child is born…and his name shall be called Wonderful.”
[From Mary Baker Eddy, Science and Health, With Key to the Scriptures, (Boston: Joseph Armstrong, 1904), 107-9.]