One of the most striking aspects of "The Picture of Dorian Gray" is its use of symbolism. The portrait of Dorian Gray serves as a symbol of his inner self, while the character of Sibyl Vane, a young and talented actress, represents the possibility of genuine love and redemption. The novel also explores the tension between the world of art and the world of reality, highlighting the ways in which art can both reflect and shape our understanding of the world.