The sentence "The blue sky is the home of white clouds" comes from the article "Home" in the first volume of the first-grade Chinese language.
It is a children's poem that tells about the blue sky, woods, rivers, soil, the motherland, white clouds, birds, fish, seeds and our home. The texts are close to children's lives and are deeply loved by children.
The song here uses the rhetorical technique of parallelism and progresses layer by layer, listing the homes of multiple animals and plants to introduce that our home is the motherland, expressing our love for the motherland and the importance of the motherland to us. .