The title of work is Assimilation. It is about alienation/ assimilation. Alienated individuals struggle to assimilate into the environment. In an unfamiliar environment, as an alien biological individual, the instinct of the creature is to adjust itself and adapt to the environment. This is a phenotypic plasticity, as emergency response to a new environment that is necessary for survival. In this work, this physiological response is used to metaphorize a psychological state.
Like the protagonist who becomes vermin in Kafka's metamorphosis, and part of the alienated individual becomes an arthropod. So physical adjustment has to happen, in which the psychological state of metaphor has changed, and the relationship between the individual and the surrounding environment has changed, too.