The meaning of the poem "Indus"

The artistic conception of Chinese parasol in ancient prose is often used to render: loneliness, desolation and sadness.

1. For example, in "The Sound is Slow" written by Li Qingzhao: "The phoenix tree is raining at dusk, dribs and drabs. How can it be a sad word this time?"

2. For example, Li Yu, the queen of the Southern Tang Dynasty, wrote, "The bright moon is like a hook, and the lonely phoenix tree locks the autumn."

In real life, metaphors are often used: boring, helpless, bleak and so on.