Polonius believes Hamlet is insane owing to his unhealthy passion for Ophelia. As a result, he forbids Ophelia to communicate with the prince in order to preserve her honor and safety.
Hamlet’s madness is the subject of Polonius’ speech, which begins with his daughter Ophelia reporting him to her father for speaking out of turn. Polonius is certain that Hamlet’s insanity comes from his emotions and not from “wretched incestuous lust.” The prince suffers from a strong, possibly unhealthy love for his daughter, Ophelia.
Although Polonius views Ophelia’s rejection of Hamlet as a struggle, he is mistaken in his observation. He thinks that this more intense, even depressive response is due to heartbreak. He believes that love is an unhealthy and savage feeling that drives people insane. It emphasizes Hamlet’s tragic flaw by highlighting his lack of sanity.
Finally, Polonius’ last justification is Ophelia’s account of one of his unusual visits. He becomes certain that Hamlet is insane after her speech. The prince appeared in her room in filthy clothes, as though “he had been set free from hell.”
He shook Ophelia at the peak of her overreaction without uttering a word. Such violent actions and Ophelia’s daughter’s shock persuade Polonius to accept Hamlet’s insanity. The plan to feign madness by the prince worked perfectly. However, it presages future plot twists.
As a result of Hamlet’s madness being accepted, Lord Polonius forbids his daughter to communicate with him. He asks her to preserve her pride and security. It is interesting to note how differently Polonius addresses Hamlet’s insanity with his children.
He expresses worries about Hamlet’s fanaticism and discusses his research and evidence concerns to Laertes, his son. However, he derides Ophelia for her love for an insane guy who is only motivated by emotion. He states that she has been misled by his false statements and compulsion, which is solely driven by impulse.
As a result, as the tale unfolds, Hamlet restricts Ophelia from seeing, writing, and talking with him. She follows his instructions out of respect for her father. As a dutiful daughter, she complies; this makes her even more dejected. Both Ophelia and Hamlet fall into a state of melancholy as a result.
Ophelia appears to be innocent and powerless in this section of the play, as seen from her actions. Her father is in command of her life choices. That could be why she agrees to follow Polonius’ instructions. She returns all of Hamlet’s missives to him after doing so. Then she refuses him access to her chamber, severing herself from a beloved one entirely.
Polonius fails to protect his family and others from Hamlet, despite his best efforts. He is the one who initiates an irreversible chain of events that results in an unhappy conclusion. Polonius reiterates his discoveries to the king and queen in order to establish Hamlet’s madness even further. Polonius creates another scheme in order to provide more proof.
He hides behind the curtain to study Gertrude and Hamlet interacting in hopes of detecting signs of madness. This attempt kills him. The prince kills Polonius by mistake, which adds to his insanity. It affects Ophelia’s sanity, leading her down a spiral caused by his sad flaw and moral quandary.
Polonius considers Hamlet insane because he’s infatuated with Ophelia and she isn’t responding, so he’s miffed. He hopes that Hamlet and Ophelia will become friends. Polonius will keep an eye on them.