What do you mean, even the prosperity of 3 thousand is pessimistic?

Even if the prosperity of three thousand years is a metaphor, it means that even if the world around us is prosperous and beautiful, we should remain indifferent to it. Its meaning can be explained as not being troubled by material and secular disturbances, but knowing how to put down utilitarian hearts and desires and treat the world with a detached attitude. This sentence conveys a kind of outlook on life, that is, treating life as a fog, and all the prosperity is just passing by, so don't chase and rely too much. It is also similar to the Buddhist mentality of no desire, no desire and no enlightenment.