Why do "broad, broad" poets call broad music and broad songs poems of the earth?

Cricket and Cricket Keats, England

Poetry of the earth never dies;

When all the birds were dazzled by the hot sun,

Hidden in the shady forest, there is a sound.

Floating on the branches around the newly cut grass,

That's the music of Guoguo! It competes first.

Indulge in the luxury of midsummer, it never feels it.

Your own happiness fades away, and once you get tired of singing,

They perched comfortably on the pleasant grass.

The song of the earth never stops;

On a lonely winter night, when the cold condenses

It's quiet, jumping back and forth on the fireplace.

Crickets' songs, in the rising heating,

In sleepiness, people feel the sound.

Like a grasshopper chirping on a grassy mountain.

John keats (1795- 182 1 year), an outstanding English poet at the end of 18, was also a representative poet of romanticism. The Joy of Cricket shows the strong emotional color of excitement and joy of Cricket on the pleasant grass in summer, while the Song of Cricket refers to the chirping of Cricket on a lonely and cold winter night, which awakens people who are sleeping soundly at home. This poem is ingenious, short and pithy, and only describes the singing of slugs and crickets, but does not describe the singing of other birds and insects on the earth. However, it shows the scene that nature keeps "singing" all the year round, praising the eternal beauty of nature. Starting with "the poetry of the earth will never die" and "the poetry of the earth will never stop", it is pointed out that the central idea of poetry is "the poetry of the earth will never die". The theme of "the poetry of the earth will never die" is vividly expressed by citing examples of "Music of a Vagrant in Midsummer" and "Song of a Vagrant in Winter" respectively and skillfully associating them.