F.L. Rawson, engineer and scientist, who is the author of "Life Understood" (published by Wm. Clowes & Sons, Ltd. London, England) narrates an account of a British regiment under the command of Colonel Whittlesey that served in World War II for more than five years without losing a man. This unparalleled record was made possible by means of the active cooperation of the officers and men, all of whom memorized and repeated regularly the words of 91st Psalm, which has been called the "Psalm of Protection."
The Ralston Publishing Company of Cleveland, Ohio, used to print (and maybe they still do) for distribution wallet-size cards with the above story on one side, under the caption "Protection for Soldiers and Sailors" and the 91st Psalm is on the reverse side.
By constant reiteration and repetition of the truths contained in Psalm 91, the men in Colonel Whittlesey's regiment acquired the feeling of being watched over by an Overshadowing Presence.
By repetition, faith, and expectancy, these truths sank down into their subconscious mind, bringing about an inner conviction of Divine protection at all times. This is one of the miracles of prayer.
» ref. The Amazing Laws of Cosmic Mind Power by Joseph Murphy