In Vedic Astrology Rahu and Ketu are considered “shadow” planets in that they do not have a physical mass but are the mathematical juncture points of the Moon and Sun’s orbit at which point eclipses occur. These energetic points carry a tremendous amount of power and hidden influence on our human psyche. Rahu, is the Northern node of the Moon, and Ketu is the Southern node. Ketu in particular is the most mysterious of the nine planets.