of murder, his tortoise-like condition worsens. The comparison is asserted again when he forces Nastasya to leave his room once she gives him his mother’s letter. Much like a turtle, he doesn't want her to witness his emotions as he reads the letter. The simile emphasizes Raskolnikov’s introverted attitude and abhorrence of social interaction.
By using a simile that compares Raskolnikov to a tortoise, Dostoevsky underscores his reserved personality that stems from arrogance.
He views himself as superior, which therefore separates him from society. Moreover, Raskolnikov continually severs his ties to acquaintances as he contemplates and finally executes the murder. Dostoevsky utilizes the simile to allude to Raskolnikov’s utter inability to communicate and interact after he murders the pawnbroker. He portrays Raskolnikov’s first signs of insanity. It is no longer his choice to isolate himself. He has transformed into a psychotic and deranged person that has limited control of his actions. Another idea that the author introduces is Raskolnikov’s split personality. Occasionally he wishes to engage in conversation with others, but he soon becomes so mentally and emotionally exhausted that he retreats back into his shell. He often lets his emotions, especially anger, take control of the situation. Dostoevsky applies a simile to establish Raskolnikov’s personality transition from prideful introversion to insane
isolation.