The idea that thought prompts action is pretty simplistic and universal, but it hinges on the assumption that your thoughts are in alignment with your psyche. When thoughts and inclinations collide we take the most comfortable route neglecting what the consequences are and make the less than optimal decision. In order to execute perfect revenge, there has to be that Age Old paradigm of An Eye For An Eye, A Tooth For A Tooth lodged in your soul. Thoughts: which in Hamlet concerns retaliation, has to have a mechanism of self-righteous equivocation in order for those thoughts to coalesce into Action. When a common man thinks, he uses reason and understands and acknowledges the consequences of his behavior. Hamlet is the opposite. He doesn’t consider consequences. He lusts for revenge in his thoughts but little in his actions. When he stabs through the arras, he acts without being able to see who was actually behind it; perhaps to diminish the chance of charges of Treason or to prevent an escape by an eavesdropper of his heretic clammering. Whichever the case what Hamlet neglects to realize is: that even if it turned out to be someone else, namely Polonius, behind the arras, his son would want to revenge that murder just as much as Hamlet wants to revenge his fathers. This abominable rashness of Hamlet’s is his demise. Laertes is the one who kills the Prince. Hamlet had the intention of killing the King but lacked the courage to consider the outcome of stabbing through a concealed barrier. As Horatio says when all is said and done;
Purposes Mistook Fallen On The Inventors’ Heads.