Answer:
A type of hammer that brings a room to order.
What goes through the door without pinching itself? What sits on the stove without burning itself? What sits on the table and is not ashamed?
I am the hole in the night, the ever watchful eye. I return in a cycle, to enlighten the sky.
Twigs and spheres and poles and plates. Join and bind to reason make.
A mile from end to end, yet as close to as a friend. A precious commodity, freely given. Seen on the dead and on the living. Found on the rich, poor, short and tall, but shared among children most of all.
What language does a billboard speak?