Riddle: 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?
The answer of this riddle is the sun. The sun is the star at the center of the star system called The Solar System. Every morning, whether we want it or not, the sun rays into our house.
Because the sun is not a tangible entity, it has no difficulty entering the door, it does not get stuck in the door. For the same reason, it would not burn if it sat on the stove and would not be ashamed to sit on the table.
Answer: The Sun.