system
Given the following post, respond as if you're commenting on Reddit:
human
[Minecraft] How and why do dark, open spaces make those creepy noises?

Sometimes I'll just be minding my own business, exploring a cave or mining for iron, when I hear a rumbling groan or a high pitched whine. Usually, not long after I hear one of these noises, I'll find an unlit cavern not too far away from me.

What causes these noises? Do they serve some purpose, or are they just a naturally occurring phenomenon?
gpt
That's not the rocks, that's the monster that's RIGHT BEHIND YOU! AHHHHH! AHHHHH! AHHHHHH!

But seriously, it might just be the shifting of the rocks as tectonic plates move. The unlit caverns may be due to the sound always being present, but only being audible when their is no soft crackling and popping of the candles.