<human>:  What is the meaning of the title of the novel ‘The Picture of Dorian Gray’ by Lord Suckling?
<bot>: The title of the novel is a metaphor for the moral corruption of the main character, Dorian Gray. The picture of Dorian Gray represents Dorian's immoral actions and the portrait represents his soul. The moral of the story is that Dorian's soul will eventually be tainted by his immoral actions, which will lead to his eventual downfall.