Mars is the planet of energy and Mercury governs intellect.It is energy and intellect which carves the destiny of a person.In my earlier book of Jupiter & Saturn ,Jupiter defines the existing potential in store and Saturn the efforts one can put in motion.The results and the way they would be achieved is determined by the aspects and interplay of Mars and Mercury.A debilitated Mars and negative mercury with positional strength and a strong Jupiter-Saturn will produce a native endowed with success considering the present value systems and this book gradually builds up on various facets of the two planets.