What are the poems about "faithfulness"?

1, poem: After three months of war, a letter from home is worth a ton of gold.

From Du Fu's Spring Hope in Tang Dynasty

Interpretation: The continuous war has lasted for more than half a year, and there are few letters from home. A letter is worth twelve thousand gold.

2. Poem: Who sent Yun Brocade? The wild goose returns, and the moon is full of the west building.

From: Song, Li Qingzhao, "A plum branch, fragrant lotus root and residual jade, dead autumn"

Interpretation: Looking up at the distant sky, white clouds are curling up, who will send the brocade book? By the time the geese flew back, the moonlight had spread all over the west building.

3. Poetry: If you want to send a colored ruler, where do you know?

From: butterfly lovers, threshold chrysanthemum, sorrow is smoke, sorrow is blue tears by Song and Yan Shu.

Interpretation: I want to send a letter to my sweetheart. But the mountains are endless and the water is endless. I don't know where my sweetheart is.

4. Poetry: Tiger cooks carp with a ruler book in it.

From: Han Dynasty, anonymous "Drinking Horses in Great Wall Cave"

Interpretation: Tell the boy servant to open the wooden box, which contains a long letter written in plain silk.

5. Poetry: Seeing the autumn wind in Luoyang City, I want a writer to write a book.

From: Qiu Si by Zhang Ji in Tang Dynasty.

Interpretation: The autumn wind blows gently in Luoyang, and my thoughts are surging. I want to write a letter to greet peace.