Hysh, the Realm of Light, is a domain of blinding revelation and perfect order, the illuminated counterpart to shadowed Ulgu. Its endless day is lit by no single sun but by the ambient radiance of the realm itself, and its magic is the white lore of purity, reason, and enlightenment, a light so absolute that it can heal, or scour, or reveal a truth no soul was ever meant to see.
Geometry and discipline govern Hysh. Its lands were ordered into concentric realms of increasing perfection, and the great nations of the aelves were arranged like the workings of a vast philosophical engine. To dwell here is to pursue mastery, of self, of magic, of the cosmos, through study so severe it borders on agony.
The realm is the home of the Lumineth Realm-lords, haughty aelves reforged by the mage-god Teclis to embody enlightenment through discipline. They bind mountain-spirits and light itself to their will, wielding a serene and merciless mastery of magic, yet their pursuit of perfection can curdle into an arrogance as blinding as their realm's own glare. Beyond the great aelven nations dwell orders of ascetics, scholars, and light-priests who have spent whole lifetimes contemplating a single truth, and there are highlands of pure aetheric radiance where the boundary between thought and matter dissolves entirely, promising perfect wisdom to those who can endure their rigours and madness to those who cannot.
Among the gods of the Mortal Realms, Teclis and his sister Tyrion count Hysh their seat, and from it the forces of Order draw wisdom, sorcery, and light to war upon the dark. For all its serenity, Hysh is no refuge, for its brilliance casts long shadows into neighbouring Ulgu, and the two realms remain forever entwined, light and shade defining one another.