Answer:
Scythe of darkness, Shadow’s light. Guiding eye of thirteenth sight.
What covers its face with its hands, speaks no language, yet most known what it's saying?
The sun bakes them, the hand breaks them, the foot treads on them, and the mouth tastes them.
What can you fold but not crease?
The sharp slim blade, that cuts the wind.
It can be cracked, It can be made, It can be told, it can be played. What is it?