Elements of expressionist aesthetics appear in a very unique way in one of the most famous novels in world literature, Die Verwandlung (The Metamorphosis), written by Franz Kafka in 1912 and published for the first time in one of the most representative magazines of literary expressionism, Die weissen Blätter, in 1915. The representation of nature, as well as the relationship between city and nature, are privileged elements in expressionist aesthetics, either to highlight a hidden identity of human nature with physical nature, or to present a relationship of estrangement (Fremdheit ) between these two types of nature. The present work will analyze how Kafka used the representation of physical nature as a literary resource to express the internal transformations (awareness) of the protagonist of Die Verwandlung, Gregor Samsa, who wakes up one morning transformed into a monstrous disgusting animal. The perceptions of nature, whether through vision (or its dissolution), or through hearing, transformed and refined in the metamorphic being, follow Gregor's path, from his surprising awakening, to the reception/rejection of his bestial nature by family and other visitors to the house, and the process of their »thingification» (Verdinglichung) on the way to death. My talk can been seing  through the following https://www.youtube.com/watch?v=mE_avZJrcXU