Full context:   The organization of Dominion into eight differentiated sectors arises from a dual principle: the alternation of a diurnal group of four (Houses 1, 2, 3 and 4) with a nocturnal group of four (Houses 5, 6, 7 and 8), and the intercalation of an angular quaternary group (Houses 1, 3, 5 and 7) with a intermediary quaternary group (Houses 2, 4, 6 and 8). In phases 1, 2, 3 and 4 of the daily motion, the body is above the horizon (diurnal sectors); in phases 5, 6, 7 and 8 it is below the horizon (nocturnal sectors). In phase 1, the body rises and becomes visible (Objectivation); in phase 3, it culminates (Individuation); in phase 5 it sets and becomes once again invisible (to the diurnal is joined the nocturnal: Conjoining); in phase 7 it reaches its lowest point (Participation).   The angle AS marks introversion (an attitude of mind turned inward), the angle MC marks extraversion (an attitude of mind turned outward), the angle DS marks exteriorization (the tendency to project outward what is contained within) and the angle of the Nadir represents interiorization (the tendency to bring within what lies outside).