How Magic Works
Magic in Aurelion is accounting performed on reality. Every source has a price, every excess creates recoil, every school is strongest near its own anchor, and repeated practice eventually turns the caster into the thing that powers the spell.
The World Keeps Accounts
Aurelion does not treat magic as a neutral quantity called mana. The central treatise, De Magia Aurelionis, calls it the world's bookkeeping: entries made between desire and price, Memory and forgetting, life and the residual value of bones. Every school begins with an active source - gold, blood, Memory, bone, element, illusion, contract, divine power or the Edge - and every source imposes a passive cost. The caster does not merely spend energy. The act changes the relationship between the caster and the part of reality being used.
The Law of Price makes this explicit. Gold buys power by inviting distortion and madness; blood pays in death and monstrosity; Memory risks erasing identity; bone cools the living toward death; illusion blurs dream and waking; contracts trade freedom for enforceability; nature can dissolve the self into the biome; divine channels turn a person into a vessel; the Edge threatens to remove the person from the world altogether. The Law of Transformation extends the same logic through time: long practice reshapes the practitioner. A school is not just something one knows. Eventually it becomes the condition through which one is known.
Power is further constrained by Balance, Proximity and Limits. Magic strengthens near its source - gold near nodes and vaults, Memory near mirrors and theatres, bone near necropolises, contracts in chancelleries, anti-magic near inquisitorial fires. Greater power cannot be poured without regard to the target or the world's balancing pressure; violations invite the Nothing and signs of the Black Sun. Pushing beyond personal capacity causes recoil, when the school's passive cost arrives all at once. Runes, places of power and sacrificial fuel do not abolish this law. They move the payment or increase the account from which it can be paid.
Weaving explains why spectacle and difficulty are not the same. A weave can be spoken, gestural, musical, danced or meditative. Cost rises sharply with radius, distance, angle, duration and intensity, but structural complexity matters more than visual size. A vast rain of fire can be easier than growing one living bird instantly, because life requires a precision that destruction does not. Rituals solve another problem by anchoring magic in objects, actions and groups. This is the core of Aurelion's magical philosophy: power is not divided into good and evil. It is divided into transactions whose consequences can be understood, displaced, concealed or catastrophically miscounted.
