What is the origin of "purple gas coming from the east"?

Purple air comes from the east, which is an auspicious omen.

Pronunciation z ǐ q ǐ d not ng lá i

Legend has it that before Laozi crossed Hangu Pass, Guanling let Yin see the purple gas coming from the east and knew that there were saints to pass. Sure enough, I came riding a green cow. This old metaphor is a symbol of good luck.

Origin of idioms

Liu Hanxiang's Biography of Immortals: "Laozi's westward journey made the shade see a purple floating, but Laozi took a green cow."

Laozi is knowledgeable and served as an official in charge of books and classics in the Zhou Dynasty. About the time he was in his seventies, there was chaos in the world, and the princes fought for power.

"Purple gas comes from the east" is a great victory in "Laozi Going through the Customs", which has been passed down through the ages.

In 5 16 BC, there was chaos in Zhou Wang, and the vassal states were keen on power struggle, and wars were frequent, and the people were in dire straits. I was very disappointed with Zhou Wang's room, so he decided to quit his job and go to the west. When I passed the Hangu Pass, Yin, the guard of the Pass, was a man who was good at observing astronomical phenomena. He saw a purple gas floating from the east, thinking that a saint was coming, and hurried to meet him. I saw an old man coming slowly on a green cow. This is Lao Zi.

This is the origin of the idiom "purple gas comes from the east". Yin entertained Lao Tzu for several days and asked him to write, but Lao Tzu couldn't refuse, leaving a famous five thousand words. The world calls it Tao Te Ching, also known as Laozi or Laozi's Five Thousand Articles. In addition, there is a view in academic circles that the custom that Laozi refers to is not Hangu custom, but scattered custom.

Used as object and attribute; Include praise

Structural subject-predicate

Synonyms are colorful, clear purple and purple yellow.