Once upon a time in ancient China, the Emperor was in his study, looking over volumes of diplomatic documents. He found it hard to concentrate, so he summoned his most trusted Minster. When the Minister arrived, he saw that the Emperor was pacing back and forth, looking irritable.
The Emperor said to him: "I wish to focus on the affairs of the state, but my mind is unsettled and agitated. When I feel like this, I need something I can look at to help me regain tranquility. Go find the best artist in the land and have him create a painting that has the power to calm me down. I want the theme of this painting to be 'True Tranquility.'"
"As you command, Your Majesty."
A few days later, the Minister reported that there were three artists widely considered to be the best in China. They were equally talented, so he brought all of them into the palace. Once they understood what the Emperor wanted, they began painting.