1) The North, South, East and West of the celestial and terrestrial maps. 2) A system of studying current patterns that moves all factors in a horoscope in an uniform amount symbolically forward or backward in time, according to a specified arc, such as the Solar Arc (Sun's progressed motion in one year). Another example is the Ascendant Arc, which uses the movement of the progressed Ascendant in a year. Generally the "directed planets" are interpreted by comparing them with the natal planets.