174-WATCH lest you differentiate between the claims of error because of the human manifestation, calling one more dangerous and difficult to heal or to reduce to nothing, than another. All error has exactly the same fundamental belief back of it, whether its manifestation seems small or great. A belief in a cold may not arouse as much fear in a student as some claim that is regarded as more serious, but metaphysics holds all false beliefs to be unreal, and asserts in theory that one erroneous belief is as readily destroyed by truth as another, even if some seem to be more tenacious than others. An insane man who believes that he is Napoleon, is as easy to heal as one who claims to be a mouse. Where the manifestation of error seems to be especially fearful, the student should minimize his sense of the error in causation, so that he learns the lesson that from the standpoint of truth, all error is fundamentally the same, namely, a belief in a mind and power apart from God. Mortals judge Goliath by his size, and fear a large manifestation more than they do a smaller one. Metaphysics shows that sometimes the most insignificant phases of human experience operate to rob man of God, as successfully as the large if this action is not detected and handled. With a fearful or large manifestation of error one is apt to accept an exaggerated sense of cause. Mortals grade causation by manifestation. Science teaches that, as the mental cause of phenomena, error is the same in all instances. To believe that it is necessary to put forth ten times the effort to heal a cancer, that is required to heal a cold shows immaturity and inexperience in a student. What is the difference in practitioners? Why should one be more successful than another? One is often able to detect error and bring it out from its hiding place, better than another, because he uses his "Soul-sense" that Mrs. Eddy refers to on page 85 of Science and Health. And an error that has been brought out from under cover can be handled by truth easily and readily. The same stone, or complete sense of demonstration, is needed to meet every Goliath. David did not barrage Goliath with a multitude of arguments. He did not say, "Now, I will give you a week's treatment, and see what the effect is. If at the end of that time you are still alive and powerful, we will try again." He went out armed with understanding, to put down illusion, or insignificance posing as power. He used one complete scientific statement, the "grain of Christian Science" that met the error in its vulnerable spot, namely, the belief of intelligence and sensation in matter. That did the work. David's grain of truth must have included a complete recognition of the allness of God's power which was back of him as it were, and the realization of the nothingness of anything that claimed to oppose him. When you recognize the ALONENESS of the power of God, that must necessarily carry with it the recognition of the illusion of anything claiming to have power, that can be used against that ALONE power. One needs all of this realization to meet any error, and this is all one needs. The successful practitioner is the one who goes forth with David's attitude of mind, not regarding the apparent size or formidableness of the manifestation, but firm in his knowledge of and faith in the omnipotence back of what to human sense seems his inadequate weapon. He does not minimize the importance of going out after error with a complete spiritual sense. Yet he knows that that is all that is necessary; nor does he feel the need of anything more, in order to meet any phase of error, or nothingness that looms up, assuming to be real and formidable.