Here's what the quote means:
"Thou art to me a delicious torment" is spoken by Lord Henry Wotton to Dorian Gray. It expresses a complex and somewhat paradoxical emotion:
* "Delicious torment" implies a sensation that is both pleasurable and painful.
* "Thou art" refers to Dorian Gray, a beautiful and alluring young man.
The quote suggests that Lord Henry finds Dorian's presence both captivating and agonizing. He is drawn to Dorian's beauty and charisma, but he is also aware of the potential for danger and destruction that lies within Dorian's hedonistic nature. Lord Henry is fascinated by the duality of Dorian's character and the destructive path he is on.
This line highlights the themes of beauty, pleasure, and corruption that run throughout "The Picture of Dorian Gray." It also foreshadows the tragic consequences that will ultimately befall Dorian due to his relentless pursuit of pleasure and self-indulgence.