Cartesiand

So it all depends on how it's sung? The book I'm reading makes it seem like I can look at any lyrics and be able to identify the meter. What would be the common meter to this song? http://www.azlyrics.com/lyrics/disturbed/landofconfusion.html

I'm working on Meter or Metre whatever and I'm totally at a loss on what stressed words are. I've looked for patterns and I fail to see what constitutes as a stress. Can someone explain it to me?