The astral system of a human being, with six (twelve by polarity) inner constellations revolving around the sun of the omniscient spiritual eye, is interrelated with the physical sun and the twelve zodiacal signs. All men are thus affected by an inner and an outer universe. The ancient rishis discovered that man’s earthly and heavenly environment, in twelve-year cycles, push him forward on his natural path. The scriptures aver that man requires a million years of normal, diseaseless evolution to perfect his human brain sufficiently to express cosmic consciousness.