I guess sheep, the first two sentences, are praised by former sages and later sages, and must be a loyal minister and a good soldier. I guess it must be "Yang Jiajiang" and Xie Yang's "Sheep", and the last two sentences, frost and snow, all mean white, sheep are as white as snow, and sheep can feed and survive in the snow; The last sentence, why the sheep is born with a goatee, shows that it is like an old man but can also be a child, so the double meaning is that the sheep is born with a beard and looks old, but it is also a boy!