Later, because Buddhism was gradually introduced to China, blowing dust was the instrument of Buddhism, so the eunuch was equivalent to holding an instrument in his hand, which had auspicious implications. Later, this dusting became a symbol of the power of some big eunuchs.
Extended data:
According to historical records, duster, also known as duster, duster or duster tail, is a tool for attaching animal hair or filiform linen to the front end of the handle, which originated in the Qin and Han Dynasties and has a long history. At first, dust removal was used to sweep away dust or drive away flies and insects. Because of its portability and beautiful appearance, it was deeply loved by the literati in the Han and Wei Dynasties.
Moreover, dusting has been a kind of handicraft with miraculous effects since ancient times, such as keeping healthy and improving intelligence, eliminating diseases and strengthening the body, strengthening the body resistance and eliminating evil spirits. Eunuchs have a sense of leisure in their hands, so Buddhists, Taoists and Confucians in the past dynasties generally used dust removal. There is even a saying: "He who holds dust is extraordinary."
In Wu Tangmen's martial arts, there are many unique weapons, and dust removal is one of them. Blowing dust inside the door means sweeping away dust, and it is also something that people inside the door carry with them when they travel. In the Taoist system, blowing dust is an instrument in the Dojo, and then it is transformed into a weapon by Taoist priests, which belongs to one of the soft weapons.
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