Christian Science is revealing to men that spiritual truth destroys mortal error and brings harmony, health, and peace into their lives. But what is spiritual truth, and what mortal error? Spiritual truth is the truth about reality, about God and His creation or universe, including man. And mortal error is a term which includes all the erroneous concepts entertained by the human so-called mind, all the false material beliefs held by mortals. Never before has the distinction between Truth and error been so clearly drawn as Christian Science draws it today; never before has it been so plainly stated how the understanding of Truth can be applied to destroy error in all its forms.
Mankind is prone to believe in error—that which is false. The unenlightened human mind believes in truth and error, good and evil, life and death, believes in them as equally real, with the result that mankind is liable to be either harmonious or inharmonious, sick or healthy, disturbed or at peace, happy or unhappy. And not until Christian Science comes with its clear teaching on the nature of God, Truth, as All-in-all, and its equally plain teaching on the nature of evil as unreal, are men provided with the means, the knowledge, adequate to enable them to reject the evil beliefs which hold them in bondage.
What, then, is the method whereby the errors of mortal mind may be uncovered and overcome? It is based on the understanding of God, Truth, and on the knowledge of the unreality of evil. Suppose the student is tempted by the argument of envy or hate. The argument oppresses him; and if he allows himself to be taken in by it, he may find himself beset by sickness. As a Christian Scientist, what should he do? Immediately turn his thought to God, knowing that He is Love, in this manner confirming to his consciousness the fact of the unreality of evil, and thereby overcoming the argument of envy or hate with its apparent effect of sickness. Mrs. Eddy writes on page 418 of "Science and Health with Key to the Scriptures": "Truth is affirmative, and confers harmony. All metaphysical logic is inspired by this simple rule of Truth, which governs all reality." She continues, "By the truthful arguments you employ, and especially by the spirit of Truth and Love which you entertain, you will heal the sick."