Old calligraphy

Wang Xizhi himself is a free and easy person, and it is purely his enjoyment to fan the old man. If it is specially entrusted to him, it is not in line with his own personality, and secondly, he doesn't like his works (especially those that are not gifted) to be contaminated with too much utilitarian color, so he chooses to "laugh without answering". In fact, he has given the answer.