The work highlights the beauty of change and joy. In the fantasy story told by the little boy in the first person, all loneliness, anxiety and fear are pushed behind the closet door. On the title page of this book, we have caught a glimpse of a pile of toys and clothes scattered in the door. It is the door to another dark world, a world of nightmares. As long as the lights are turned off, the nightmare will break out ... The little boy not only fantasizes that there is a long tunnel behind the door, but the most amazing thing is that the author also gives the nightmare a shape-an ugly monster to the extreme! When the monster first came out, it was quite crazy and bared its teeth, but when the light came on, it showed its true colors. It turns out that it is as afraid of the dark and light as the little boy. As a result, the plot turned sharply. Fear is no longer the little boy wearing a helmet and holding a pike, but the timid "nightmare" himself-the "nightmare" scared to cry. Finally, the little boy was not only not afraid of "nightmare", but also slept with it affectionately. He even said proudly, "I guess there is another nightmare in my closet, but my bed is not big enough to sleep three people." In children's fantasy world, there is no boundary between subject and object, reality and fantasy, and imagination is rich and wonderful.
Children's hearts are pure and clear, and their eyes on the world always look immature and naive. This is the innate character of children, which has become the objective source of the pure beauty of children's literature, showing the pure beauty of children's world and becoming the conscious creative pursuit of children's literature writers.