Astrology is a group of systems, traditions, and beliefs in which knowledge of the relative positions of celestial bodies and related details is held to be useful in understanding, interpreting, and organizing information about personality, human affairs, and other terrestrial events. Astrology sees mankind as being not only influenced by hereditary factors and the environment, but also by the state of our solar system at the moment of birth. The planets are regarded as basic life-forces, the tools we live by as well as the basis of our very substance. The aspects formed between the planets describe these relationships, the positions of the planets in relation to the place of birth tell us of their expression in the spheres of life depicted by the astrological houses. By interpreting the roles of these players (the planets) and their qualities (the elements, signs and houses) and creating a synthesis, astrology is able to present a complete and comprehensive picture of the perso.