What is behind a poem "Rain Beats Banana"?

1, "Rain Beats Banana" is followed by Wang Wei's "With Sad Leaves".

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Rain hits banana leaves with sorrow, and the heart feels ashamed with a new moon.

The fragrance of the orchid is short, and the dream stays in the fog.

Traveling lonely, sailing in Wan Li, I am immersed in troubled times.

I used to protect flowers and cherish spring, and I was obsessed with water.

2. Translation:

Raindrops hit the banana leaves with sadness, and I am ashamed to talk to people like a crescent moon.

The fragrance of orchids can only be realized and sighed for a long time, just like watching from a distance in the fog and staying in a dream.

Travelers have gone far, drifting thousands of miles like a solitary sail, and they have to be disappointed in troubled times.

I used to be a flower-loving emissary of Xi Chun, but unfortunately this infatuation gave the water flowing east.