Watchtower of the west. Llewellyn Encyclopedia tells us: The Great Western Quadrant of Water is the Watchtower that reflects images into our physical worlda region of strong creative life forces that gives rise to all living thingsbut not life itself. It is not the water we drink in the physical world. It is invisible. The Watchtower of Water is located on the astral plane and has astrological relationships with the planet Venus.