Astrology is based on the belief that the movement of the stars and other celestial bodies affects our lives here on Earth. Not everyone acknowledges these effects, but those who study astrology have many reasons to believe that all things, both terrestrial and celestial, are strongly connected. In fact, scientists have absolutely determined that the moon has influence over certain phenomena on Earth such as ocean tides.

Astrology is a group of systems, traditions, and beliefs which hold that the relative positions of celestial bodies and related details can provide information about personality, human affairs and other "earthly" matters. Modern astrologers define astrology as a symbolic language, an art form, or a form of divination.Despite differences in definitions, a common assumption of astrologers is that celestial placements can aid in the interpretation of past and present events, and in the prediction of the future.