It means: if we still govern the people in the same way as before, it is like guarding a tree and waiting for a child to hit it.
Waiting for the Rabbit is selected from Han Feizi, which was originally used to describe the luck of trying to succeed without hard work. Now it is also a metaphor for not taking the initiative to work hard. In case of luck, I hope to get unexpected gains. Stick to narrow experience and be inflexible.
Han Feizi was a famous thinker at the end of the Warring States Period and a representative of Legalism. Your respectful name is Hanzi. Son of Hanwang, disciple of Xunzi. As a representative of the Legalist school of Qin, he was highly appreciated by Ying Zheng, the king of Qin, but was jealous by Reese and others, and finally he was jailed and killed. He is considered to be one of the two people who can best absorb the essence of Laozi's thought. He is the author of Han Feizi, with 55 articles,100000 words. It is unique in the prose of pre-Qin philosophers, which shows that Han Fei attaches great importance to materialism and utilitarianism and actively advocates the theory of absolute monarchy, with the aim of providing autocratic monarchs with the hegemonic thought of Qiang Bing, a rich country.