Good Order enters the depth-psychology corpus principally through two distinct but converging lineages: the archaic Greek concept of eunomia and its Platonic elaboration into the well-ordered soul and well-ordered state. In Hesiod and Solon, Good Order (eunomia) functions as a cosmic-political principle, one of three Seasons attending the works of humankind alongside Justice and Peace, and Solon explicitly links it to the restraint of greed and hybris as the precondition of civic flourishing. Plato inherits this inheritance and radicalizes it: in the Gorgias, the ordered soul becomes the very criterion of goodness and happiness, with temperance, justice, and courage all flowing from inner psychic arrangement. The Republic presses further, arguing that musical education cultivates a habit of Good Order that propagates organically through all civic life and, conversely, that lawless play produces lawless citizens. The Laws translates Good Order into positive legislation, insisting that obedience to law is what preserves the state’s existence. Plotinus extends the vocabulary into metaphysics, placing order, symmetry, and continuity among the indices by which the Good may be approached from below. The I Ching commentary tradition, filtered through Wilhelm and Liu I-ming, offers a structurally parallel vision in which the celestial order commands alignment of virtue, an order discovered through stopping evil and promoting good. Together these sources construct Good Order as simultaneously cosmological, psychological, and political — a term whose depth-psychological valence lies precisely in its demand that inner arrangement and outer institution mirror one another.