His initial vision is conveyed through the comparison between the modern world and the Aztec world. The positive image of “passing under trees full of birds” describes the free, peaceful and safe nature of the modern world through the symbolism of birds living freely and not locked in a cage. This is in contrast to the metaphor of "He almost physically detached himself from the nightmare" when the reference to the Aztec world shows that it is a dangerous and violent world due to the world described in negative connotations by the protagonist. However he realizes that this peaceful world he lived in was just his imagination. The realization of his true reality occurs through the image of “He realized that he was running in total darkness… the sky crossed by the treetops was less black than the rest” of the Aztec world. Along with the motif of smell in his dreams shown through “it was a curious dream because it was full of smells and he had never dreamed of smells” it also reflects the idea that his real world is the Aztec world. The depth of description in describing its dream and use