An original AI generated sci-fi illustration on an immutable blockchain – The Citadel of Convergence – The Citadel of Convergence drifted at the edge of a nebular storm, its structure half-metal, half-miracle. Built by an extinct civilization, it stood as a bridge between realities—the left portal pulsing with cold blue energy from the void dimension, the right with molten gold from a universe of living suns. Starships circled it like insects around a god’s lantern, wary of what waited within. Inside, the corridors whispered with echoes of creation itself. No crew dared enter without hearing the hum of their own heartbeat merge with the pulse of the Citadel. It was said that the twin cores of the tower—known as the Eyes of Eternity—could reveal the destiny of any who gazed upon them, but at the cost of erasing the life they had once lived. The walls breathed, the floors pulsed, and reality thinned like fabric under cosmic strain. Commander Thalen approached the central chamber, drawn by a signal older than light. As he stood before the blue and gold thresholds, he understood the truth: one portal led to the birth of all things, the other to their end. To choose was to define existence itself. With a trembling hand, he stepped forward—into the blinding glow of both, as the Citadel sang his name into the stars.