A vibrant, colorful archway with a bright light at its center, set against a dark, starry background.

Beneath the vast expanse of a star-studded night sky, a majestic cave entrance beckons, its walls adorned with a breathtaking array of colors. The entrance is framed by rugged, dark rock formations that contrast sharply with the vibrant hues that burst forth from within. The colors transition seamlessly from deep purples and blues at the top, through rich oranges and yellows, to a radiant white at the center, creating a mesmerizing rainbow effect. This ethereal light source, seemingly a portal to another dimension, casts a warm glow that illuminates the cave's interior, revealing a smooth, tiled floor that leads deeper into the darkness. The scene evokes a sense of wonder and mystery, inviting viewers to imagine what lies beyond the threshold of this cosmic doorway.