The Universality of Exercise
In general, training and exercising is a natural principle of the universe that, if applied to any application, will create progress, just like if we exercise our muscles, they will become stronger. If we exercise our minds with calculus, geometry, and algebra or with logic and philosophy, our thoughts become deeper and more robust. If we exercise our speaking ability and lectures, our speech will improve. If one practices magic, they will achieve astonishing results in this regard. Of course, exercise affects both physical and spiritual forces. The two are usually considered separate, but, indeed, they are the same at the core. Therefore, exercising is beneficial in all aspects, and mental exercise develops the intellect. Those who desire to increase their intelligence must practice and exercise in that regard.