THE PHYSICAL BRAIN Let us return now to this wonderful nerve center, or brain of the physical life. When does it begin to send out _these finely attenuated beauty impulses, which must move at very high rates of vibration_? These impulses which give grace, form, and all other touches of indescribable charm to the body of the child. From the very beginning of its life to some small degree, and from twelve years of age they begin to show themselves the dominant impulses of the life. They rise in the body just like waves of heat on a summer day. _They are flooding every fiber of the being, giving roundness to the limbs, grace to the form, drawing beauty lines upon the face, painting roses in the cheeks, putting sparkles in the depths of liquid eyes._ All of this and more are these little builders, which we call sex impulses, doing in the years from twelve to eighteen. Is it any wonder with all this marvelous work to do, that like the sculptor who is to make a statue out of a block of marble, they must take possession of the body and become the dominant element in it? The heart, liver, digestive organs, and even the brain itself are subject to these outflooding impulses as they work out the beauty of the physical life. Turn back to your chart now and note what a small part the intellect plays in the life of the girl or boy between the ages of twelve and eighteen. Just enough to be a willing servant of the sex impulses, as they work out the plan of beauty, as given them by the hand of the Master of all life. In fact the brain is largely an automaton in this work, for the ego has not had time _to fully lay through the brain that fine system of telephone connections and wires by which the brain becomes a perfect instrument through which the ego or inner man may reason out the problems of life_, so that up to eighteen there is comparatively little reasoning ability in the life of children. IMPULSES MOVING AT RAPID RATES OF VIBRATION These beauty building impulses are sent out in such abundance during the teens, that they fairly cause the body to scintillate, the cheeks to glow and the eyes to sparkle. Here they come, wave after wave, _like shimmering light upon the mountains, trooping up through the physical life like angels of the Eternal, making the body glow with unspeakable beauty_.