The author describes their emotions, whether they are sad or happy. Then the reasons of sadness and joy are mapped out from the article. Even if it is not so clear, readers and authors have the desire to explore the reasons. Then the reasons for the mixed feelings of sadness and joy will definitely be related to the personal environment at that time, which depicts the personal living environment and indirectly depicts the situation of some countries. Since ancient times, talking about the current situation has been taboo, which is fatal. So the writing is very obscure and unclear, only personal feelings and landscape descriptions. In fact, they all imply criticism of the current situation and so on. In addition, the suggestions and opinions to the society are mixed.
Writing about them means writing about the world.
There is a famous saying in the teahouse: don't talk about the country. Very deep and clear.
Personal opinion, as appropriate.