To understand Opeth you have to listen to their albums from beggining to end. Just really listen. Opeth's music at first is very powerful, and conveys emotion in absolutely overwhelming ways, whether it be through their own form of brutality, or through those moments of beauty in which everything quiets down. And then you listen again and you discover new things that captivavte you further. Opeth has more depth in their albums than almost any band I have ever heard. That is Opeth, Raw Emotion, beauty, unique concepts, and astounding depth. All of these things draw me back to Opeth over and over again. Ever wonder why you get bored of a 5 minute Metallica song after listening to it 10 times, while you can come back to Opeth again and again for years? It's because their music has overwheling depth. It's like there are layers to it, and if you really listen you can hear all those things.