Answer:
I am always hungry, I must always be fed. The finger I lick will soon turn red.
In marble halls as white as milk, lined with a skin as soft as silk. Within a fountain crystal-clear. A golden apple doth appear. No doors there are to this stronghold, yet thieves break in and steal the gold.
I move without wings, Between silken string, I leave as you find, My substance behind.
You saw me where I never was and where I could not be. And yet within that very place, my face you often see.
Hoofed frolicking.
What covers its face with its hands, speaks no language, yet most known what it's saying?