Ansai Waist Drum: Tell me about your understanding of the meaning of soil layer in "Where is there such a thick soil layer except the Loess Plateau"?

"Where can there be such a thick soil layer except the Loess Plateau?" In the author's view, people on the Loess Plateau are simple, calm and quiet, and they still preserve the vitality of life. Compared with Jiangnan, where the commodity economy is developed, they are less impetuous and less sophisticated. Thick soil (soil layer) contains primitive life and turbulent power. The author endowed this thick loess plateau with the catharsis of life and the outbreak of strength. Jiangnan, a water town, has passed away and changed a lot.