The body is the servant of the mind. At the bidding of unlawful thoughts, the body sinks rapidly into disease and decay; at the command of glad and beautiful thoughts, it becomes clothed with youthfulness and beauty.
Sickly thoughts will express themselves through a sickly body
They are continually killing thousands of people just as surely though less rapidly. The people who live in fear of disease are the people who get it. Anxiety quickly demoralizes the whole body, and lays it open to the entrance of disease; while impure thoughts, even if not physically indulged, will soon shatter the nervous system.
Strong, pure, and happy thoughts build up the body in vigor and grace. Men will continue to have impure and poisoned blood, so long as they propagate unclean thoughts. Out of a clean heart comes a clean life and a clean body. Out of a defiled mind proceeds a defiled life and a corrupt body. Thought is the fount of action, life, and manifestation; make the fountain pure, and all will be pure.
Change of diet will not help a man who will not change his thoughts. When a man makes his thoughts pure, he no longer desires impure food. Clean thoughts make clean habits. The so-called saint who does not wash his body is not a saint. He who has strengthened and purified his thoughts does not need to consider the malevolent microbe.
If you would protect your body, guard your mind
If you would renew your body, beautify your mind. As you cannot have a sweet and wholesome abode unless you admit the air and sunshine freely into your rooms, so a strong body and a bright, happy, or serene countenance can only result from the free admittance into the mind of thoughts of joy and goodwill and serenity.
With those who have lived righteously, age is calm, peaceful, and softly mellowed, like the setting sun. But to think well of all, to be cheerful with all, to patiently learn, to find the good in all such unselfish thoughts are the very portals of heaven; and to dwell day by day in thoughts of peace toward every creature will bring abounding peace to their possessor.