Lovely Bones!

I think her father is saying is that the Penguin is trapped in a perfect place. He couldn't be happier somewhere else. Her father considers the place perfect because no one can do any harm to the penguin. He is also saying that the penguin is safe where it's at. I think Susie thinks she is trapped in a perfect world because now no one can do anything to harm her anymore. Yes, I think Susie sees it as a perfect world. She thinks that nothing can get better there in heaven and nothing can get worse.