The artistic feature of this poem is that it has two themes: one is to praise the beauty of one's lover, and the other is to praise the immortal power of poetry. At the beginning, the poet compared the love of friends to the most beautiful season in Britain-summer, which aroused the readers' beautiful imagination. Next, with a change of pen, summer is beautiful, but it can't last forever; However, with the power of poetry, he can make the beauty of his beloved friend last forever. The last two lines sum up the full text: as long as the lines of poetry exist, the beauty of loving friends exists. Here, there is both praise for the beauty of friendship and immortality of poetic art.
Another feature of this poem is its vivid language and novel metaphor. Just fourteen lines use a variety of rhetorical devices, such as rhetorical questions, metaphors, personification, exaggeration and so on. The use of these rhetorical devices greatly enhances the expressive force of this poem.