Description: The frontier desert is vast, and only a wisp of smoke rises between the empty world and the sky. On windless days, the sky is clear and the smoke is the highest in the sky. It is a beauty of strength and perseverance; Within sight, the river flows from one side of the sky to the other, seemingly endless, and the sun sets. Its light is the most conspicuous between heaven and earth, and it seems to be closer, bigger and rounder to people.

Mood: The poet was excluded from the imperial court to express his condolences to the frontier. He was originally lost, but in this magnificent scenery, he seems to have forgotten his unhappiness, giving people a feeling of boundless warmth.