The fable story of planting trees tells us that we should follow the objective law of the development of things, so whether planting trees or governing the people, we should "conform to nature" and don't do things that go against the essence of things, so as to avoid getting twice the result with half the effort and ultimately being in vain. The story of "Guo Tuo Planting Trees" comes from "Liuhe Dongji", which tells the truth of planting trees to educate people, govern the country and support the people.

The moral of planting trees in fables:

The title of this article is biography, which is actually a fable with strong irony. Taking Guo Tuo, a fictional expert in tree planting, as an analogy, the author warns officials that raising people is like raising trees, and it is necessary to "make the nature of trees come true". Raising people means governing the people. Accusing officials in the middle Tang Dynasty of disturbing the people and hurting the people reflects the author's sympathy for the people's thoughts and feelings and his desire for political reform.