text:  Sir Walter says "that during the space which occurred between the writing of the 'Conquest of Grenada ' and 'Aurengzebe ' Dryden's researches into the nature and causes of harmony of versification led him to conclude that the Drama ought to be emancipated from the fetters of rhyme--and that the perusal of Shakspeare on whom Dryden had now turned his attention led him to feel that something further might be attained in tragedy than the expression of exaggerated sentiment in smooth verse and that the scene ought to represent not a fanciful set of agents exerting their superhuman faculties in a fairyland of the poet's own creation but human characters acting from the direct and energetic influence of human passions with whose emotions the audience might sympathize because akin to the feelings of their own hearts