What is the main content of Su Dongpo's Painting Fan?

When Su Dongpo was an official in Hangzhou, he wrote an inscription and painted on the fan, which made the fan sell quickly, solved the debt story of the fan maker, and reflected his concern for the people. Later, he used this metaphor to show concern for the people's sufferings and love the people like children.

Su Dongpo was a famous essayist, poet and great calligrapher in the Northern Song Dynasty. He especially likes painting dead wood and bamboo stones, and calligraphy is his own.

Story:

When Su Dongpo took office in Hangzhou, someone complained that someone owed him 20 thousand yuan. Su Dongpo summoned people who owed money to ask, saying, "My family made a living as a fan, and it happened that my father died. Since this spring, it has rained every day and the weather is very cold. The fans made can't be sold. It is not intentional to owe money. " Dongpo looked at him carefully for a long time and said to him, "You bring the fan you made for the time being, and I will help you open the market and sell it."

After a while, the fan came. Su Dongpo took twenty blank armor fans, wrote a cursive script with a pen, and drew dead wood and bamboo stones with official documents, which was completed in a short time. Say to the man, "Go outside and sell the fan and pay back the money." The man was moved to tears with a fan. As soon as he left home, many people rushed to buy fans with 1000 yuan, which was soon sold out.