Many people regard Escher as the master of illusions. A wizard on paper who tricks you with his impossible constructions and wondrous metamorphoses. What he creates cannot exist. Even if you see it with your own eyes. Yet that is not always the case. Escher was indeed fascinated by the illusions that the flat surface could evoke, but sometimes he just wanted to show the beauty in reality. Three Worlds is one of the finest examples of this.
The three prints that Escher produced on the reflections in the forest serve to illustrate his perspective on the world. He sees beauty in simplicity and has immense admiration for nature. Hence the prints also demonstrate that he is not the cold mathematician that some people take him to be and that the world of illusions was certainly not the only one for him.