Many people mention Yun Mengze, and the first thing that comes to mind is the base where Cao Cao trained the water army during the Three Kingdoms period. However, the word "cloud dream" actually appeared very early, as early as the Qin and Chu States. At the same time, in the choice of names, the word dream in Yun Mengze has little to do with our understanding of dreams. The word "dream" in the Spring and Autumn Period refers to the meaning of Hu Ze in Chu dialect, rather than the dream that people sleep and dream at night as we now understand it.
As mentioned at the beginning, during the pioneering period, Yunmengze's area was very large, and its circumference reached an astonishing 450km. However, with the sediment deposition and the continuous development of the Hanjiang River Delta, the scope of Yunmengze became smaller and smaller, and it reached a period after Wei, Jin, Southern and Northern Dynasties. At this time, the area of Yunmengze has been reduced by half compared with the pre-Qin period. During the Tang and Song Dynasties, Yunmengze disintegrated and dispersed into large and small lakes. Today's Yunmengze is not what it used to be.
Although the traces of Yunmengze can still be traced, compared with the earlier Yunmengze, people now can't enjoy large areas of water in Yunmengze. At the same time, Yun Mengze's reduction also sounded the alarm for people. In the current waters of China, not only Yunmengze is facing this situation, but many waters are in the process of rapid decrease.