Where did Hexi come from in these 30 years?
Thirty years in Hedong and thirty years in Hexi is a complex idiom derived from folk stories, which was first seen in Wu's Scholars in Qing Dynasty.
The original intention of "thirty years in Hedong, thirty years in Hexi" is that good feng shui was in Hedong 30 years ago, but it was in Hexi 30 years later (river: Yellow River).
After metaphor, the fate of the world or people is always in constant change, with no fixed ups and downs. This idiom is often used as a predicate and clause in a sentence, and can also be used as a sentence independently. There are also "three years Hedong, three years Hexi", "ten years Hedong, ten years Hexi", "thirty years Hedong, forty years Hexi" and so on.
Related stories
This idiom is the most popular in Yongji area, and its birthplace is in Zhou Pu area. First of all, the river must be north-south, with dense population on both sides, which is the relationship between Hedong and Hexi.
Secondly, the river bed is very wide. Not if it's a canyon. The rivers in the canyon are always sandwiched by mountains on both sides, maintaining a river course.
Third, the flow rate is slow and the precipitation is serious. The Yellow River is the most silted river in the world, with a bowl of water and half a bowl of mud.
Fourth, Sanmenxia Reservoir impounded water, which caused the water flow to slow down, the water surface to widen and the river channel to tear. The Yellow River turns south from the mouth of Inner Mongolia, passes through the Shanxi-Shaanxi Grand Canyon, passes through Hukou, and then exits the Longmen between Hejin and Hancheng. Suddenly lost the shackles of mountains and became lazy and swaying until Tongguan, which was called "the main stream of Xiaobei".
The river bank is wide, and the flow velocity is obviously slower than that in the canyon stage (Dabei main stream). In addition, this is the tail of Sanmenxia Reservoir, and the sediment deposition is serious, which is the difficulty of harnessing the Yellow River. The river flows downstream near the west bank for a period of time, and the sediment is deposited and the riverbed is raised. After a period of time, it will fall back, that is, it will be diverted, and the water will flow downstream near the east coast, with a cycle of about 30 years.
Rivers frequently swing in the widest 18km area. After the bank fell, the land originally belonging to Shanxi on the east coast became Shaanxi on the west coast. On the other hand, the Yellow River Iron Bull from Dallas to the Pujin Ferry Site in the Auditorium, originally belonging to four heads in Qin Jin, has been diverted by Hexi and belongs to eight iron bulls in Yongji. This folk proverb is a metaphor for the rise and fall of personnel, which is changeable and sometimes changes to the opposite and unpredictable.