From the introduction: Light is everywhere. It springs from the candle at a child's bedside, warding off the monsters in the dark. It shines from the sun, high in the sky, bringing life and warmth to all the lands of the world. It hangs in the endless void between stars, bearing witness to the awesome splendor of the universe. It lingers in the Astral expanses between worlds. But more than anywhere else - more than in the brightest lamp, or fiercest fire - Light shines in the hearts and souls of mortals.