All popular subjects come with a bunch of myths, and astrology is no exception. More than understanding what astrology is, it is equally important to know what astrology is not, so that you will not set any limiting beliefs in your life.
1) Astrology is not just a predictive tool
Astrology is not just a predictive tool but rather it gives guidance to live a sensible life. If your horoscope shows some affliction to a particular bhava, then it is a clear indication that you need to work on those areas for betterment.