Astrology is the study of the effects of planetary forces upon man. It is not fortune telling. It is one of the best methods for man to learn about who he is, where he came from and where he is going. Astrology reveals CHARACTER and character is destiny. If man can change his character, then man will have changed his destiny. The one thing a birth chart does not show is the WILL of the individual and how he may exert it. The matter of exercising free will is left entirely up to the individual. Astrology does not show anything but tendencies. A man can rule his stars by exerting his will.  If a man decides to flow with the tide of life, then the tendencies indicated in the birth chart will at some time have their effect.