Since There Are Five Constants in the Outline, I Can Write with Ease.

The scribes at First Mo Pavilion always write late at night. He copied laws and precepts, but his pen produced plants and trees that no one had ever seen. One day, the guarding immortal official pushed in the door and saw him painting a wild gardenia for the "Forbidden Chapter". The immortal official angrily scolded him for his nonsense. But he put down his pen and smiled: "The order of the world has been written on the stone. This stroke of mine is just to make the people who look at it feel that the stone is not so cold." The immortal official was silent for a moment, and finally walked away. On the second day, wild gardenias grew under the stone tablets of commandments all over the city.