The aliens in the novel, covered with large white robes and hoods, look similar to humans in appearance, but in fact, they are not at all, with weird and inexplicable shapes—the same description was used again later, in this story , the difference is that the three little aliens can fly in the air and wear a white robe, just like human beings. People wear clothes, and the body under the clothes is usually invisible to others. Therefore, many ugliness can also be covered up by clothes. This situation, when extended to literary language, has another meaning, and there is also "clothes and beasts". This idiom means that clothes are the appearance, and the appearance is magnificent and gorgeous, but the inner filth is covered and it is not easy to see.

However, it is not easy to see, but it does not mean that it is impossible to see, no matter how cleverly concealed, it will always be exposed. It is always right to be careful about everything that looks human.