Mankind have been educated to believe in the reality of both evil and good. They have used the power to think in a double way, giving some recognition to good and often a great deal of recognition to evil.
In Christian Science we learn that thinking, when it reflects the nature of God, good, is not a mere personal process but expresses divine power. In Science and Health Mrs. Eddy, the author, asks this question: "Are thoughts divine or human?" Science and Health, p. 462; and says, "This branch of study is indispensable to the excision of error." From this we can see the importance of checking our thinking so that we are able to overcome the evils with which we may be confronted.
That which is good comes from God. Because God is the only creative power, those things that do not come from God, such as sin, disease, and death, have no power, no presence or place to operate, no substance, and no law to sustain them. If a thought is good and constructive, it has a divine source. An evil thought is nothing at all but a suggestion of mortal mind. The term mortal mind indicates a conglomeration of evil, erroneous concepts, false beliefs, accidents, fears, difficulties of every name and nature, confusion, and unhappiness. All these things are outside the realm of Mind, God. Since there is one God and God is Mind, there can be but one Mind.
