What kind of emotion did Yan Yan express in The Book of Songs?

The Book of Songs Yan expresses the author's feelings of parting.

Original poem:

Guo Feng, Li Feng and Yan Yan: Anonymous in Pre-Qin Dynasty

Swallows are flying in the sky with uneven wings. My sister married in the country today. I can't see the shadow, and my eyes are like rain.

Swallows are flying around in the sky. My sister is far away today, so it's not too long to see him off. He can't see anything, and his face is covered with tears.

Swallows are flying in the sky with low voices. Sister is far away in the south today. Send him to the south. It's sad that there is no shadow at all.

The integrity of the second sister is really long when you think about it carefully. Gentle and obedient, cautious and kind. I often think of my father and remind my ears.

Explanation:

Swallows fly in the sky, spreading their wings irregularly. My sister got married today and sent her to a country road. Seeing no one, tears poured down.

Swallows are flying in the sky, and their posture is up and down. My sister is getting married today, so it won't take too long to see her off. Looking forward to seeing no one, I stood in tears.

Swallows fly in the sky, singing and whispering. My sister got married today and sent her to the south. It's really hard not to meet anyone.

The second sister is honest and steady, and her thoughts are practical and profound. Gentle and obedient, cautious and kind. I often think of my father and my ears.

Extended data:

Regarding the specific creation background of this poem, the Preface to Shi Mao recorded "Yan Yan" and Wei Zhaojiang gave it to a concubine. It's a poem that Wei gave to Xuedi after his death by Huan Gong's wife.

The phrase "Yan Yan flies in the air, but her feathers are different" is well known, and later generations' poems about Yan Yan are second to none. Swallows fly freely and happily, but their sisters are sad when they leave. The swallow suddenly flew away, and I don't know why. That man is far more suitable for others, holding his hand and sending him to the distant countryside. Then walk away, leaving me standing there crying. The happier the swallow is, the lonelier Zhuang Jiang is.

Swallows are flying in the countryside, and their voices are whispering. That man is far from Chen Guo. He is in the southeast of me. It hurts to see each other again. Describe the careful persuasion between sisters with the whispering voice of swallows. My heart trusts my sister because she is very sensitive. Get along gently and smoothly, and be kind and cautious. May you miss your late husband and never forget your sisterhood.

Baidu Encyclopedia-Guofeng Gao Feng Yanyan