"My uncle died after shaving his head in the first month of the year"? Expert: There is no scientific basis. When dealing with traditional culture, we should "take the essence and discard the dross" Some traditional customs must be passed on; the parts that are obviously dross must be resolutely abandoned.
For example, during the Spring Festival, the seventh day of the first lunar month was Human Day, and generally children could not teach anything, not teach their parents anything, etc. The reason why "nostalgia" is widely spread as "dead uncle" may be related to the different understandings of civilians in ancient daily life.