Answer:
Lighter than what I am made of, More of me is hidden Than is seen.
If a man carried my burden, he would break his back. I am not rich, but leave silver in my track.
A box without hinges, lock or key, yet golden treasure lies within.
I am a box that holds keys without locks, yet they can unlock your soul.
Who lives in a house with one bedroom, 50 hallways, and ghosts lurking everywhere?
What covers its face with its hands, speaks no language, yet most known what it's saying?