think back and think at dusk.

poem

poem, pronounced: sh ī ī ī is the sentence that makes up poetry. Poetry usually limits the number of words in each sentence according to the format of poetry. China's earliest poems were structured with metrical poems, and the metrical requirements were strict. For example, the poems in the pre-Qin period were generally four words per sentence, which were found in the Book of Songs. Later, it developed into a five-character or seven-character rhythmic poem, which was found in Tang poetry.

after the further development of economy and culture in Song and Yuan Dynasties, the content of poems was gradually expanded and deduced. In the late period of the new-democratic revolution, poems evolved into free-style poems without the limitation of words. This is a landscape poem written by the poet Li Bai when he lived in seclusion in Lushan Mountain around the age of 51. This poem vividly depicts the magnificent scenery of Lushan Waterfall and reflects the poet's infinite love for the great rivers and mountains of the motherland.

The first sentence "The incense burner in Rizhao produces purple smoke". "Incense burner" refers to the incense burner peak of Lushan Mountain. This peak is in the northwest of Lushan Mountain, with a sharp and round shape, like a censer. Due to the waterfall, water vapor transpiration, under the bright sunshine, as if there is an indomitable incense burner, purple smoke rises in Ran Ran. A word "life" vividly describes the rising scene of smoke clouds.

This poem is extremely successful in using metaphor, exaggeration and imagination, with unique conception, vivid language and lucidity. Su Dongpo appreciated this poem very much, saying that "the emperor sent the Milky Way to drop its pulse, and in ancient times there were only fallen immortals". "Immortal" is Li Bai.