Once upon a time the sun and the sky argued. The sky said to the sun.
— Sun, we don’t need you . My terrestrial people will live without you.
The sun answered.
— Well, I shall left, but you will regret.
The sun left the sky and went away.
After that fight the earth got dark. The people left the earth. And at that moment the sky understood, that the sun was very important for the Earth. And it asked the sun to come back. And the sun came back. From that day on the sun and the sky haven’t fought with each other.
The fable teaches, that you must not be selfish, self-centered.