In Christian Science one learns that experience is the outgrowth of thought, that what one holds in consciousness tends to be expressed in his life. From this fact he learns that it is both wholesome and healthful to keep his thinking in line with what is good and true. It becomes very important to understand the scientific truth that God is Mind, that there is just one God and one Mind, and that there is no other consciousness.
Mrs. Eddy states in Science and Health (p. 469): "Mind is God. The exterminator of error is the great truth that God, good, is the only Mind, and that the supposititious opposite of infinite Mind—called devil or evil—is not Mind, is not Truth, but error, without intelligence or reality."
This is a very important point in the practice of Christian Science healing. If one would heal his fellowmen, he must learn how to purify both his own and his patient's thought, or consciousness. When error, sin, and disease are thoroughly excluded from the thought of the patient, they cannot appear in his experience.
