Well the message of this song is quite obvious, I think. Metallica is chasing you down and there's nowhere to hide! It is probably reflecting on wars, or actually when I read the lyrics over, I start to imagine a brutal alien invasion.
I love Metallica. I'm so glad I discovered them. I went through a tough time in school, and Metallica was one of my favourite bands, as the lyrics always make me feel strong and empowered when I felt angry or depressed. Metal really is the best medicine for any psychological problems you may have. I could listen to these songs over and over because the emotions in them are so amazing, and I love the way that Metallica songs always change completely towards the end to an almost new song, and everything is done so perfectly. They are the most talented band I know.