Whose poem is it from and what is it written about?

Angry, leaning on the railing, resting in the rain.

Looking up, screaming in the sky, strong and fierce.

Thirty fame, dust and earth, eight thousand miles of clouds and the moon.

Don't be idle, white and sad!

Jingkang is ashamed, but it is still snowing.

When will courtiers hate it?

Take a long-distance bus and break through the Helan Mountain Que!

The monk longed for pork, but he said he longed for Hun blood.

Stay from the beginning, clean up the old mountains and rivers, and go to the sky!

-Yue Fei's "Man Jiang Hong"

Appreciate:

This word is generous and sad, with intense and high tone, full of patriotic passion. Between the lines, the author reveals his firm confidence in restoring the Central Plains and his deep hatred for the enemy. Chen Tingzhuo praised this word and said, "What a spirit! How ambitious! After reading for thousands of years, it is awe-inspiring and lively. The word' don't wait for leisure' should be remembered through the ages. " ("Bai Yu Zhai Hua Ci")