How to understand the image of a girl with a lilac knot in a rainy lane?

Lilac is the most common image in classical poetry, which often represents loneliness, beauty and sadness. "Lilac girl", the girl is lilac, symbolizing the ideal in the poet's heart, noble and beautiful. But fleeting and unpredictable, it gives people temporary comfort, leaving permanent nostalgia and infinite melancholy.

The extended information poem describes the lyric hero "holding an oil-paper umbrella" and wandering alone in a long and lonely rain lane. He has a faint hope that he will meet "a girl with a lilac-like sad knot" The girl has a lilac color and fragrance, but her heart is full of sadness and sadness.

He met such a girl, but it was fleeting, "like a dream". Her color, fragrance, "sighing eyes" and "lilac-like melancholy" all disappeared in "Elegy of Rain". He still "walked with an oil-paper umbrella" and wandered alone in the long and lonely rain lane, still hopeful, hoping to float across "a girl with lilac-like sadness"

In Rain Lane, the poet used symbolic images and image group to construct lyric space, conveyed inner feelings, and integrated the artistic nutrition of ancient China poems, especially graceful poems in the late Tang Dynasty and the Five Dynasties. Besides, the artistic success of this poem lies in its harmonious musical beauty.

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