What kind of thoughts and feelings does "Spring Hope" express?

Du Fu's ancient poem "Looking to Spring"

The country is broken by mountains and rivers, and the city is full of spring vegetation.

Waiting for flowers to shed tears, hating other birds to frighten them.

The war rages on for three months, and a letter from home is worth ten thousand gold.

The white-headed scratches are shorter, and the lust is overwhelming.

This poem depicts the scenery, making flowers splash with tears and birds startled. As well as the narration and description of the difficulty in transmitting family letters due to the wars for many years. It expresses the author's worries about the country and the people, melancholy and helplessness. The author is full of desire to serve the country, but has nowhere to vent it.

There is no way to serve the country