Answer:
What holds names and memories which are not its own?
What points the way without a hand. It floats on water but exists on land?
When the creeper passes, all the grass kneels
What's black when you get it, red when you use it, and white when you're all through with it?
I have an eye but cannot see, You'll head inside when you see me.
I build up castles. I tear down mountains. I make some men blind. I help others to see.