Full moon shining on the rippling seas surface Controlling the tides Serving its purpose With a force measurable by complicated equations and tactful calculations Used to predict its every push and pull along the shores of all earth's nations A light hanging in the atmosphere Instilling into the minds of many throughout history hope and fear Shining from the unseen glow of yesterday's sun Placed so carefully distant as to linger in gravity's grip Not too far or to close so it will never slip