I found it helpful to read the rest of the watch in order to better understand the first paragraph. It continues…

“It is certain that our mental work does feed the world spiritually; that those to whom we send it are blessed thereby; that they develop and grow under it; that they love it naturally; and that it brings peace on earth and goodwill to men. However, we must declare that the action of Truth does not aggravate error to anyone’s harm, since in reality there is no error to be aggravated; that its action makes man happy and free; that it heals him and purifies him. Under this kind of general treatment the world is safe, and the work of Christian Scientists does not produce chemicalization that may appear as war.

Mrs. Eddy once said to Gilbert Carpenter: “Our work does good. We have not the ability or power to do harm. There is no law that can give anyone the power to do harm. God’s law is the only law and that does good, not harm, and can give man only the power to do good, not defeat, but victory.” She also said, “Every true and noble thought helps raise humanity and lets the light in.”