Poetic nature of stamps

From the poet Yu Guangzhong's modern poem "Homesickness", the whole poem is:

When I was a child,

Homesickness is a small stamp,

I'm at this end,

Mom is over there.

When I grow up,

Homesickness is a narrow ticket,

I'm at this end,

The bride is over there.

Later,

Homesickness is a short grave,

I'm outside,

Mom's inside.

now

Homesickness is a shallow strait,

I'm at this end,

The mainland is over there

The creative background of this poem: Yu Guangzhong has been running and migrating frequently all his life, and has been separated from his relatives many times. 197 1 year, Yu Guangzhong, who hasn't returned to the mainland for more than 20 years, was homesick, and wrote the poem "Homesickness" in his former residence in Xiamen Street, Taipei.

The whole poem has four sections. On the one hand, poets write poems with the changes of time: childhood-after growing up-later-now, four life stages. On the other hand, the poet takes the space barrier as the characteristics of these four stages: the separation of mother and son when I was a child-the separation of husband and wife when I grew up-the separation of mother and son later-the separation of the wanderer from the mainland now.

The poet found a corresponding word to express his homesickness in four stages of his life: childhood stamps-boat tickets when he grew up-later graves-now straits.