The human race has stamped its authority over the planet not just by covering its surface with concrete and destroying its plant and animal life, but also by burying the natural sounds of the Earth beneath a cacophony of man-made noise; the roar of cars, aeroplanes and trains, the clanging of machinery, the noise of building, the chatter of radios and TVs, and pop music blaring from every conceivable place. But it’s not just the noise outside us which causes us problems, it's also the noise inside us. So, in our modern world, it’s essential we cultivate silence ourselves. By Guest Writer Steve Taylor, Ph.D