Tell me about the first crystal cavern you ever visited.
In my dreams, I often find myself in a crystal cavern. This isn't your typical underground formation but a labyrinth of crystalline structures that emit a soft blue glow. The walls are adorned with geometric patterns and strange runes that seem to pulse with an inner light. The air is cool, almost cold, yet it feels calming, like being in a sanctuary far removed from the world above.  The cavern opens up into a vast chamber filled with crystal formations. Some look like giant geodes split open, revealing intricate fractals within. Others are towering spires that reach towards the ceiling. The floor is smooth and reflective, creating an illusion of endless depth when you look down.