The last sentence is to send goose feathers a thousand miles away.
the meaning of "sending goose feathers a thousand miles away is lighter than affection": this is the original history of "sending goose feathers a thousand miles away is lighter than affection", and now it is used to mean "although my gift is not expensive, I have deep affection for you".
There is a story about Mian Bogao, who took jewels and goose feathers to Dai Yue in the Tang Dynasty, and took pains to arrive in Chang 'an soon. Emperor Taizong received Mian Bogao and Mian Bogao presented goose feathers. Emperor Taizong read the poem and listened to Mian Bogao's complaint. Instead of blaming him, he felt that Mian Bogao was loyal and honest, and did not disgrace his mission, so he gave him a heavy reward.
Similar words
"Send goose feathers a thousand miles away, and the gift is lighter than the person's righteousness", a proverb, which means that although the gift is light, the friendship is heavy.
Source:
Song Su Shi's poem "Yangzhou sends a few tours with local things": "You can send goose feathers thousands of miles away, so why bother to care for elk?"
Fifty chapters of Qing Li Ruzhen's "Flowers in the Mirror": "Although this gift of his is slight, as the saying goes,' It's more important to give goose feathers a thousand miles away." I had to prepare a thank-you note and accept it. "