It means that it is rare to be confused. A way of living means that when faced with all kinds of troubles in the world, sometimes we might as well treat them with a relaxed and tolerant attitude. "It's rare to be confused" is a famous saying handed down by Zheng Banqiao during the Qianlong period of the Qing Dynasty. It is a reflection of his way of being an official and his life path. Later generations lamented the philosophy contained in these four words "It's rare to be confused", so they hung it in the form of a banner at home as a warning for every life.