For thousands of years, many sayings handed down by the ancients in China are catchy and sound reasonable, but they are inevitably feudal. Like this sentence? Do you sleep with Yangliu or Yang? It doesn't sound scientific, but it makes sense to ancient people. Because the ancient people's science is the theory of Yin and Yang, in their concept, willow and poplar are both negative plants, representing bad luck, so no matter life or death, they don't want to be associated with willow.
In traditional culture, willow is a very special plant. It is said that willow contains yin and cold, and at the same time has the effect of ward off evil spirits. There is an old saying in ancient times? Willow branches are getting smaller and smaller? That is to say, if you encounter something unclean, just break a willow branch and pat it, it will feel pain, and it will get smaller and smaller, and finally disappear. This kind of thing is recorded in ancient books, which makes sense. Moreover, when celebrating the Mid-Autumn Festival in many places, every household will fold the willow branches back and insert them at the door, which means to ward off evil spirits and prevent dirty things from entering the door. ? Are you going to sleep or not? Besides the yin of willow is harmful to the yang of human body, it is also easy to cause human body to get sick. Liu? It also means flowing away? Flow? In people's eyes, it means that wealth and luck flow away, so it is unlucky, and naturally I don't want to be associated with willow trees.
Sleepless poplar is also an unlucky tree in the eyes of the ancients, because the leaves of poplar are wide and the wind blows loudly in the middle of the night, like the sound of ghosts clapping their hands. People are particularly taboo about this, so they don't use poplar as furniture, let alone poplar as coffin. In addition, poplar is also a kind of perishable wood, which will rot in less than a few years after burial, which is not good for the remains of the deceased, so Yang said.