In poetry, "butterflies flying together" is often used to express the beauty and transience of love, such as Li Qingzhao's "Like a Dream": "I often remember the sunset of the stream pavilion, and I don't know the way back to the boat when I'm intoxicated. When I returned to my boat in the evening, I mistakenly entered the depths of lotus root blossoms. The boat was in the depths of the lotus root flowers. The gulls and herons were all frightened up by the competition for the boat. Last night's rain and wind were sparse, so I couldn't finish the wine in my sleep. I asked the man who rolled up the curtain, but he said that the begonias were still the same. Do you know, do you know? It should be green, fat, red and thin."
In prose, "Butterflies fly together" is more often used to express the impermanence and changes of life, such as Lin Qingxuan's "Grasses and Trees of the Earth": "I walk along the path full of greenery, hear the chirping of 222 birds, am attacked by 222 bees, and know that 222 life has its own reason for existence. reason."
In novels, "butterflies flying together" is more often used to express the inner emotions and psychological changes of the characters, such as Jin Yong's The Legend of the Eagle-Shooting Heroes: "Guo Jing and Huang Rong walked down the stairs in pairs, one together and one on the ground, in a very intimate manner. But there was no smile on their faces, and they didn't speak, they only stared at the windows of the house where Zhu Cong and Ke Zhenxiao lived on the other side of the street."
In short, "Butterflies fly together" is a unique language feature, reflecting the delicate, affectionate, euphemistic and beautiful style of literature, and showing the different emotions and themes expressed in different genres.