At dusk, candles and light smoke spread from the Han Palace to the home of the Five Emperors, describing which festivals violated customs.

"At dusk, candles were passed in the Han Palace, and light smoke was scattered into the Hall of the Five Emperors." Sunset is evening. "Han Palace" refers to the imperial palace in the Tang Dynasty. "Five Hou" generally refers to five eunuchs who were sealed on the same day in the Eastern Han Dynasty. Here, the Han Dynasty is used as a metaphor for the Tang Dynasty, alluding to eunuchs who have been favored by emperors since the middle Tang Dynasty. Every family can't make a fire on the Cold Food Festival, but the palace is an exception. Before dark, the palace was busy distributing candles. In addition to the palace, your near minister can also get this favor. The poem vividly depicts a picture of candles passing by at night with "passing" and "scattering", which makes people see the light of candles and smell the faint smoke. It is a long-standing custom in our country to ban cold food by fire, but powerful ministers can make an exception and place candles. The poet made a euphemistic satire on this corrupt political phenomenon.

I hope it helps you.