Buddhism explains that there is a white hair on the chin.

It stands for good luck and is very lucky.

There are three kinds of folk sayings, 1 comparison spirit, second, according to the lintel, and third, auspicious symbol.

What grows on the forehead is called smart white hair, and what grows on the back of the neck is called longevity white hair. I solemnly declare that the answer is for reference only, so don't be blindly superstitious.