* * * What does it mean to cut the candle at the west window?

From the famous sentence in Li Shangyin's poem "A note to friends in the north on a rainy night", the whole poem "When you ask about your return, it rains in the autumn pool at night. When * * * cuts the candle at the west window, it talks about the rain at night. "

Interpretation of the whole poem: you often ask me when I will come home, and I don't have a fixed time to come back; It is raining heavily in autumn night in Bashu area, and the pond is full of water. When you and I can be together again,

Talking with you at the west window to cut the candle at night; What if it rains tonight?

What you mean by this sentence is: a conversation by candlelight in the west window.