In the ethereal realm of an anime world, a luminous celestial time portal gleams with otherworldly beauty. This portal, resembling a shimmering cascade of moonlit crystals, promises a journey through time and space. The image, rendered in a stunningly realistic digital painting, captures the intricate details of the portal's iridescent surface and swirling cosmic energies. Each glittering facet reflects the light of a thousand stars, creating a mesmerizing display of celestial power and mystery. The artist's skillful use of color and light brings this fantastical concept to life, inviting viewers to imagine the infinite possibilities of the universe.