What are the representative writers and their representative works who expressed spiritual problems and realistic critical themes in China's literary world in the 1990s?

In the 1990s, writers expressed their concern about mental problems and realistic criticism to varying degrees. In this respect, Zhang Chengzhi's novels The Journey of Mind and his essays The Road to Heroes and Taking a Pen as a Flag, Zhang Wei's novel Home, and his prose Entering the Wild, Han Shaogong's novel Maqiao Dictionary and his prose Nightcrawler Dream. These works often maintain the position of "elite" and try to seek spiritual resources against pragmatism and utilitarianism in the commercial society. Therefore, in these works, the theme of the significance and value of human existence has been strengthened.