Generate a singular, hyper-detailed, and awe-inspiring image depicting a monumental, celestial loom suspended in a dark, infinite void. At the center of the loom, an ethereal, multi-armed quantum artisan, (evoking the ancient weaver archetype), manipulates glowing, UV-reactive threads that represent the probability waves of alternate timelines. The entire web is illuminated exclusively by a focused 365nm UV beam, causing the quantum silk to fluoresce into intricate mandalas of sacred geometry, galaxy clusters, and branching timelines in neon gold, quantum turquoise, and deep ultraviolet purple.