Vedic Astrology refers to Indian or Hindu astrology, a system that originated in ancient India and which was documented by sages in the Vedic scriptures. Also known as "Jyotish"--the science of light, Vedic astrology deals with astral light patterns that are thought to determine our destiny.Astrology is the science of the effects of planetary movements on our lives. Astrology is based on astronomy, and astrologers need to know the correct positions of the planets among the fixed stars at any given time, as well as the correct positions of the zodiacal fixed star signs in relation to any place on earth at any given time. Once the correct positions of the signs and planets are known, astrologers can construct charts representing these positions. And using his knowledge, the astrologer can study the charts and can make a wide range of conclusions about the moment the chart was cast for. Primarily, astrology is used to understand one's self, and our karma for this life.