Answer:
Walk on the living, they donโt even mumble, Walk on the dead, they mutter and grumble. What are they?
What goes around and around the wood, but never goes into the wood?
What goes in the water red, and comes out black?
I don't have eyes, but once I did see. Once I had thoughts, but now I'm white and empty.
Useful tool for who in darkness dwell. Within you, corrupting like a deadly spell.
What is always coming but never arrives?