There will be rice, oil, salt and vinegar tea in one's life. This is the smell of fireworks and the essence of life. Qing Huan means that there are some poetic things in life besides these, which need us to experience and enjoy.
Qing Huan means elegant and comfortable happiness, which comes from Feng Zhi's Yunxian Miscellanies: Tao Yuanming often pours it with water when he wants to be a satrap to deliver wine. He said: "If you don't talk about it for a few days, I hope that the top of the mountain, the flowers and trees, and the smoke from the kitchen will surely be where the villagers live."