Equilibrium
Equilibrium, also called the Balance, is the supreme metaphysical law of Earthsea, the principle that every act of power—every spell, every naming, every change—must be weighed against its consequences, for the world is held in a delicate equilibrium that the true wizard must serve and never disrupt. It is the foundation of all true wizardry, distinguishing the mage who acts from knowledge and need from the witch or sorcerer who works magic for petty ends.
Nature and Teaching
The Masters of Roke repeatedly impress upon their students that Equilibrium is not an abstract ideal but a living reality. The Master Hand, when Ged asks how to make a pebble into a permanent diamond, explains that to change a thing's true name is to change the world itself: "The world is in balance, in Equilibrium. A wizard's power of Changing and of Summoning can shake the balance of the world. It is dangerous, that power. It is most perilous. It must follow knowledge, and serve need. To light a candle is to cast a shadow." The Master Summoner warns that summoning earthly forces like wind and rain alters the earth of which they are a part: "Rain on Roke may be drouth in Osskil, and a calm in the East Reach may be storm and ruin in the West, unless you know what you are about." The Master Namer, Kurremkarmerruk, teaches that the very power to work magic sets the limits of that power: a mage can control only what is near him and can name exactly and wholly, for if it were otherwise, "the wickedness of the powerful or the folly of the wise would long ago have sought to change what cannot be changed, and Equilibrium would fail. The unbalanced sea would overwhelm the islands where we perilously dwell, and in the old silence all voices and all names would be lost."
Violation and Consequences
The Witch of Ten Alders, who first taught Duny, knew nothing of the Balance and the Pattern, and used her crafts for foolish and dubious ends, a contrast to the true wizard's discipline. Ged's own violation of Equilibrium—summoning a spirit from the dead out of pride and rivalry—tears open the fabric of the world and looses the shadow, a nameless evil that nearly destroys him. The Archmage Nemmerle, in restoring the balance, spends all his power and dies. The Master Summoner later tells Ged that only a great power could have summoned such a thing, and that Ged must find out what it means, "or die, and worse than die." The shadow itself is a consequence of broken Equilibrium, a rent in the world's darkness that must be healed.
Restoration and Integration
Ged's final confrontation with the shadow on the Open Sea, where he names it with his own name and the two voices become one, is the act that restores Equilibrium. The shadow is not destroyed but integrated, and Ged becomes whole. Vetch, witnessing this, understands that Ged had "made himself whole: a man: who, knowing his whole true self, cannot be used or possessed by any power other than himself, and whose life therefore is lived for life's sake and never in the service of ruin, or pain, or hatred, or the dark." The oldest song, The Creation of Éa, encapsulates this truth: "Only in silence the word, only in dark the light, only in dying life: bright the hawk's flight on the empty sky." Yarrow, in her conversation with Ged, also touches on Equilibrium, asking if summoning a real meat-pie would disturb what her brother calls "Equilibrium," and Ged affirms that it would. The principle is thus woven into the everyday understanding of even the non-wizardly.
Thematic Significance
Equilibrium is the moral and metaphysical core of Earthsea. It rejects the notion that power can be used for personal glory or domination, insisting instead that all acts have consequences that ripple outward. The true wizard, like Ogion, learns patience and silence, knowing that mastery is nine times patience. The false wizard, like the young Ged, learns through suffering that power without wisdom is destruction. The concept also underlies the book's rejection of war as a moral metaphor: there are no armies or battles in Earthsea, only the individual's struggle to know and balance his own nature. Equilibrium is not a static state but a dynamic, living pattern that the mage must serve, and in serving, find his own true self.