Imagine an enormous underground cavern filled with towering crystal formations

Imagine an enormous underground cavern filled with towering crystal formations, each one radiating a soft, rainbow-colored light. The walls of the cave are smooth and reflective, amplifying the glow of the crystals. A tranquil river of liquid silver winds through the cavern, its surface perfectly still, as if frozen in time. The air is cool and carries the faint sound of chimes, as the crystals vibrate in harmony with each other, creating an otherworldly melody.