What do you mean, a brief encounter?

This is from a poem.

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Li Shangyin (Tang)

It was a long time ago that I met her, but since we separated, the time has become longer, the east wind is blowing, and a hundred flowers are blooming.

Silkworms in spring will weave until they die, and candles will drain the wick every night.

In the morning, she saw her hair cloud changing in the mirror, but she bravely faced the cold of the moonlight with her evening song.

Not far from her charming mountain, oh, bluebird, listen! -Give me what she said! .

The ancients said that parting is easier than meeting, so did the author. If you can't see it, it's even worse.