The image of "stamp" contains the poet's sad feelings, suggesting that the closest mother can't meet directly because of the political estrangement between Chinese mainland and Taiwan Province Province.
"Boat ticket" means that with the growth of years, homesickness is getting heavier and heavier.
"Grave" implies that homesickness has become an irreversible life tragedy due to long-term absence.
The "Strait" makes recessive politics explicit, which deeply implies that the political estrangement between the mainland and Taiwan Province Province is not only a tragedy of individuals and families, but also a tragedy of the Chinese nation.
Extended data
Nostalgia is one of Yu Guangzhong's poems "White Jade and Bitter Melon", and it is a classic work in which Yu Guangzhong expresses homesickness with folk songs, four rhymes of homesickness and Luo Erwazi.
Yu Guangzhong is known as a poet who "shakes hundreds of millions of China people with homesickness poems", and "homesickness" is a theme that he never forgets in many of his poems. Nostalgia gives a new explanation to an abstract theme, which is difficult to describe, but covered by a lot of descriptions.
Yu Guangzhong himself once said that this poem is "quite realistic": when I was a child, I went to boarding school and had to correspond with my mother; Go to the United States to study after marriage and return to Taiwan Province by boat; Later, my mother died and lost her maternal love forever. The first three sentences of the poem are all about women, and the last sentence thinks of the "big mother" like the mainland of the motherland, so the artistic conception and ideas will be suddenly enlightened, and there will be a sentence "Homesickness is a shallow strait".
Creation background: This poem was written in 1972. Yu Guangzhong's ancestral home is Yongchun, Fujian. He left the mainland for Taiwan Province Province on 1949. At that time, due to political reasons, Taiwan Province Province was isolated from the mainland for a long time, which prevented Yu Guangzhong from returning to the mainland for many years. He has always missed his loved ones and longed for the reunification of the motherland and the reunion of his loved ones. With strong homesickness, the poet wrote this poem in his former residence in Xiamen Street, Taipei.
Baidu encyclopedia-homesickness