It means that people can't always be smooth sailing in this life, can't always be lucky, and can't never have a bad time.
It means the same thing as thirty years in Hedong and thirty years in Hexi, which shows that a person's life is a life of ups and downs, and it can't be smooth sailing forever.
"Feng Shui turns in turn" comes from the three elements and nine movements of Feng Shui, and mainly studies the relationship between living environment and Yijing Bagua. 20 years is luck, 60 years is a dollar, and ternary 180 is just a round of gossip. Therefore, even the best feng shui only needs three yuan, and after three yuan, it will be transferred to other places.
Extended data:
Synonyms of "The Wind and Water Turn": thirty years in Hedong, thirty years in Hexi.
"Thirty years in Hedong, thirty years in Hexi" is used to describe the ups and downs of the world and lament the impermanence of the world.
Origin: The Yellow River has high riverbed and serious sediment deposition. In ancient times, the level of productivity was low and it was often flooded. Therefore, the Yellow River often changes its course. After every change of route, a village used to be on the west bank of the river, and later it moved to the east bank. So it is called thirty years Hedong and thirty years Hexi.
Back to the 46th chapter of The Scholars: "Father Cheng said,' Mr. Da, thirty years east of the river, thirty years west of the river! Just like thirty years ago, how magnificent your two houses are! I saw what i saw. " "
"Ten years east of the river, ten years west of the river" may be a variant of it. East and west refer to the north and south banks of the river. Because the Yellow River often changes its course, it is used to describe the ups and downs of personnel.