O'Brien shares a connection with Winston at the end of the novel when he says, "They got me a long time ago."
Here, "they" means Big Brother. It is unclear whether he was once a rebel and was converted, or whether he has always been a devout follower of Big Brother.
To prevail is to ‘gain the desired effect’. It’s kind of like achieving a goal, or overcoming the odds.
Like in a book or a movie, when the hero prevails, they usually defeat the villain, resolve a conflict, or achieve whatever goal(s) they had.
Hope this helps.
Answer:
In my opinion, yes. Symbolism can be anything. In writing, it's usually an idea, or thing, or words that represent something beyond the literal meaning. Even a picture or symbol can represent something. Is that helpful?