deepen the homesickness through the portrayal of action expression. The word "hope" takes care of it. Looking up at the moon, he couldn't help thinking that his hometown was under the bright moon at the moment, which naturally led to the conclusion of "sinking back again, I thought suddenly of home". The action of "bowing his head" depicted that the poet was completely in deep thought, and the word "thinking" left readers with rich imagination: his brothers, relatives and friends in his hometown, a mountain, a river, a grass and a tree in his hometown, The lost years and past events ... are all in my thoughts. The content contained in a word "thinking" is so rich. The illusion created by the poet in the specific environment of being a guest in a foreign country for a moment. A person who lives alone in a foreign country can still dilute his sorrow, but when it is quiet at night, it is inevitable that his heart will burst with waves of missing his hometown. What's more, on a moonlit night, What's more, it's an autumn night with a frosty moonlight. The word "doubt" in "could there have been a frost already?" vividly expresses the poet's waking from sleep and mistaking the cold moonlight shining in front of his bed for thick frost on the ground. The word "frost" is used better, which not only describes the bright moonlight, but also expresses the cold of the season, and also sets off the poet's loneliness and desolation when he is wandering in other places.
This five-character quatrain. Expressed casually, in one go, but the idea is tortuous and deep. The content of poetry is easy to understand, but the poetry can't appreciate the rhythm.