The phrase "Spring silkworms will weave until they die, and candles will drain the wick every night" is more because of the vivid metaphor, that is, spring silkworms will not spin silk until they die, and the candles will burn out and they will not shed tears, which means that the love between men and women will never die and become a solemn and stirring swan song. Recently, due to the need of teaching, the author consulted some materials and found some appreciation articles, and then understood this sentence as writing "acacia after separation". For example, the teaching reference book of the new curriculum experimental textbook "Chinese" published by Jiangsu Education Edition said that "Zhuanlian" wrote the words "after separation" and expressed his deep affection for his loved ones with two vivid metaphors ... the "silk" here. In addition, an article signed by Hao Shifeng (International Online) was widely circulated on the Internet, which not only emphasized the homonym of "silk" and "thinking" to show that "and the silkworm dies" is to write "missing" (meaning "missing after parting" in the text), but also borrowed the phrase "thinking of you is like a midnight candle" when you enjoyed "every night" before the Tang Dynasty.