Christian Science practice is the realization of the allness of God and of the established nature, completeness, orderliness, and eternality of His creation. It is the continual contemplation and expectation of good only, the denial and the casting out of every form of error as unreal. God is good and is the only creator; therefore all that He has created is like Himself, good. Nothing apart from good has reality, power, or existence. Although evil at times seems to be present in human affairs, it is always the result of wrong thinking, which is subject to correction.
Mary Baker Eddy writes in "Science and Health with Key to the Scriptures" (p. 186): "Evil is a negation, because it is the absence of truth. It is nothing, because it is the absence of something. It is unreal, because it presupposes the absence of God, the omnipotent and omnipresent. Every mortal must learn that there is neither power nor reality in evil."
Error may be compared to a mistake in mathematics. A small mistake not only throws one's books out of balance, but causes hours of searching until it is found and rectified. Then the mistake disappears, while that which is true remains. So it is with every mistake or error in human experience. Only the good is real and continuous.
