This document discusses the benefits of mental fitness for mind, body, and spirit. It summarizes several studies that show the interconnection between mental and physical health. A 1988 study found that patients who received intercessory prayer recovered better from illness. A 1970 study proved the mind communicates with the immune system and other organs. A 1980 study showed lifestyle changes like diet and stress management can reverse heart disease by improving blood flow. Exercises like guided imagery, subtle mind practice, and yoga can improve mental fitness by reducing tension, increasing body awareness, and fostering interconnection between mind and body.