Why cut the candle core?

When the candle burns for a long time, the exposed wick will become longer and split easily, so cut off the extra wick and keep bright lighting.

Language: Tang Li Shangyin's poem "A Note to Friends in the North on a Rainy Night": "When * * * cuts candles at the west window, it's raining at night."

When can I go back to my hometown and have a heart-to-heart talk while cutting candles under the west window? Then I'll be a guest in Bashan tonight and listen to the drizzle and tell you how lonely I am and how much I miss you!

Later, "cutting candles" was used as a code word for night talk.

Expand data candle history:

Candles mentioned by modern people only appeared in the Han Dynasty. In the early years of the Western Han Dynasty, the King of Nanyue presented five stone honey and 200 honey candles to Liu Bang, the overjoyed Emperor Gaozu. Research shows that honey candles are the embryonic form of our modern candles. When the fire was banned during the Cold Food Festival, the emperor would send candles to officials above the marquis and top-grade officials. It can be seen that candles were extremely rare at that time and belonged to treasures.

In the Song Dynasty, candles appeared in the border trade with Xixia. As a foreign exchange commodity, they were widely used at that time. During the heyday of the Ming and Qing Dynasties, foreign exchanges further increased, and ordinary people had the opportunity to use candles.

In ancient times, without electricity, the lighting function of candles was particularly important. However, with the rapid development of science and technology, the scene of every household lighting with candles has become an ancient calendar, which is mostly used for anniversaries and festive days.

People's Network-Candles didn't appear until the Han Dynasty: they were extremely rare at that time and belonged to treasures.