First of all, the overlapping of four groups of adjectives constitutes an emotional atmosphere in which a word is here but it means another, thus forming the characteristics of simple language, deep feelings and implicit implication.
However, the "small" stamps separate the mother from the caring son, who misses his mother's flesh and blood; The "narrow" ticket separates the yearning and yearning between young men and women; The "short" grave separates the thoughts buried in the bottom of my heart that cannot be transmitted; The "shallow" strait separates the unforgettable feelings for the old country.
Secondly, the repeated use of a group of demonstrative pronouns constitutes a meaningful emotional magnetic field, thus forming a lingering and intriguing effect of poetry.
"Zhe" and "Na" are demonstrative pronouns in Chinese, which have no function of expressing emotion, but only indicate position. However, "this end" and "the other end" (one of which is "inside" and "outside") appear four times in a row, which not only inherits the melody beauty of the Book of Songs, but also makes the poem look low, obscure and resentful. More importantly, through multiple rendering and repeated emphasis, the sense of distance between space and time is highlighted, and the feelings between "this" and "that" are slowly brewed step by step until the climax.