China was an agricultural society in ancient times. Work at sunrise and rest at sunset. The observation of the cycle of day and night makes day and night the earliest and most intuitive understanding of time.
In China's literary tradition, night has always been a very important time image.
Sunset rest is a universal law in nature. At night, everything will end the day's work and activities, birds will stop singing, animals will stop running and jumping, and people will go out and make less noise. Therefore, the night is quiet, distant and deserted.
This natural feature of night makes poets feel lonely, desolate, melancholy and lonely, thus forming a kind of night image full of loneliness and desolation.
Night is a symbol with multiple symbolic meanings. Poets love the night and have special feelings for it. He also has a keen insight into the night. At night, the poet's emotional activities are very rich. The repeated appearance of night images in Yi Lang's poems is related to the objective social reality, the poet's subjective consciousness and creative thinking. In Yi Lang's poems, the image of "night" has the following three symbolic meanings:
(1). Night image is a visual social background ("Night image" includes the author's unique experience, ideological understanding and aesthetic feeling of nature, society and life).
(2) Night image is the sustenance of the poet's aesthetic ideal.
(3) Night is the poet's home.