"It has nothing to do with flowers, it seems to meet Yan." "Yi Lian Gong" is skillful, fluent and implicit, which shows the poet's ingenious thinking and deep affection in using function words to form neat antithesis and vividly sing and sigh, which is also the reason why this word is famous. But what is worth pondering is the meaning of this couplet. The fading of flowers, the disappearance of spring and the passage of time are irresistible natural laws. Although it is useless to regret lingering, they all say "helpless", which is inherited as "the sun sets"; However, in this late spring weather, I feel not only helpless disappearance, but also gratifying reappearance. Isn't the returning swallow dancing like an old acquaintance who built a nest here last year? This sentence should be "when will you come back". Although Flower Falls and Yan Hui are also prospects, once they are associated with "helplessness" and "deja vu", their connotations become very extensive and have the symbolic significance of beautiful things. In the interweaving of regret and comfort, there is a certain philosophy of life: all the good things that are bound to disappear can't stop them from disappearing, but at the same time, there are still good things reappearing, and life will not become nothingness because of disappearance. It's just that this reappearance doesn't mean the reappearance of beautiful things intact, but "deja vu".