INTERNAL CONCENTRATED LIGHT.
There is concentrated light—the very essence of light—within ourselves, particularly in the brain, to which the light, having travelled about the body, is conveyed, through the instrumentality of the blood, to the nerves and other organs.
In speaking of the brain, we often use words belonging to vision. Until the discovery of "concentrated light," we did not know how truthful were these expressions, one of which in our language answers to the "mind's eye." The eye as well as the brain contains concentrated light, and physical impressions received through the visual organs are by this electricity immediately conveyed to the sympathetic "light" of the brain.
By the application of concentrated light we can even increase for a time the intellectual powers, or, rather, we can strengthen the instrument through which the intellectual powers are manifested.