This poem is inscribed on the wall of Mr. Hu Yin's house. The first two sentences describe the environment of his home, which is clean and quiet, suggesting the elegance of the owner's life. The last two sentences go outside the courtyard, writing about the deep affection of mountains and rivers for Mr. Hu Yin, and using the two allusions of "protecting the fields" and "driving away the wind", turning mountains and rivers into vivid and emotional images. Mountains and rivers take the initiative to meet people, which is a manifestation of people's nobility. Although there is no positive description of people in the poem, writing about mountains and rivers means writing about people. The scenery and people care for each other everywhere, and every sentence is closed and melted without trace. The poet's allusions are exquisite, and readers don't know the contents of allusions, which does not hinder the understanding of the general idea of poetry; The profound and interesting meaning of poetry needs to know the source of allusions in order to understand it more deeply. This paper discusses Mr. Hu Yin's selfless quality of teacher education and praises his good teaching.