Theory "about Ryan. Greider's Portrait" In The Double-sided And Double

My thesis aims to discuss the "duality" and "double" issue in Oscar Wilde's The Picture ofDorian Gray. John Herdman's The Double in Nineteenth-Century Fiction claims that thedouble is "a literary…device for articulating the experience of self-division". According to thedictionary, duality means having two parts or aspects. So my understanding is that eachdouble is one part of the dual body.In The Picture of Dorian Gray, the dual metropolitan city, London contains two sharplydifferent sides: the wealthy West End and the filthy East End. And the dual nature of the cityprovides a perfect environment for the development of the duality in Dorian Gray. So in theprotagonist Dorian also embeds two sides: the sense and the soul. The picture serves as hisdouble, his conscience, though it's separated from his body. While projecting the picture ashis own double, Dorian is also the double image of the other two important characters, Basiland Henry. They pin all their desires on the young and beautiful lad, one with brush and theother with words. Thus, I conclude that Dorian Gray is the creation of the combining powers:the dual city, the painter Basil, the hedonist Henry, the picture and Dorian himself.In the first chapter, I endeavor to analyze the duality of London, and how it exerts influenceon the development of the duality of Dorian. The second chapter is the analysis of therelationship between Henry Wotten and Dorian and how Henry regards Dorian as his double.In the third chapter, I focus on the relationship between Dorian and the painter, BasilHallward. I try to make clear that Basil also secretly exerts his influence on Dorian by virtueof the picture, in order to put his hedonistic aestheticism into practice. Chapter IV reveals thatthe picture is not a faithful mirror. It also desires to grab the youth and leads him to the roadof immorality.Basil and Henry regard Dorian as their mirror image, in which they live their own lives, whileDorian regards the picture as his "magic mirror", with which he comes to identify himself,though it's an unfaithful reflection. People live in this world;they always come to knowthemselves from the people around. It's the same with Dorian Gray. He comes to know hisbeauty from Henry's comments on youth and the picture Basil offers to him. And gradually,he follows what Henry says and what the picture reveals to him. And in the end, his friends'and the picture's "influence" ruin Dorian as well as those around him.