Hamlet decides not to kill Claudius while he is praying, claiming that this would send him to heaven, which would not be a fitting punishment for a man who killed his father unprepared for death and sent him to purgatory. For Hamlet revenge must involve justice. It begins with a hypothetical ‘might’, as if he has already decided to take no action, confirmed by the single categorical word ‘No’ in line 87, the most decisive utterance in the play. The usual diction is present: ‘heaven’ (4), ‘hell’, ‘black’, ‘villain’ (2), ‘sickly’, ‘soul’ (2), ‘heavy’, ‘thought’, ‘act’.