I really don't think that it's about dying,but that's fine cause people interpret songs differently...I guess I just have a lighter approach on that song.
The first set of lyrics where every line begins with "There is" (well except the "A sickness in me..." verse in between) is describing this person and I can relate to a lot of it...for example "There is a peace I'm searching,There is a freedom I'm depending on." After that it just sounds like a guy who has gone through something traumatic and feels drained and hopeless,helpless.
The last 4 lines are what give me the sense of the character not dying. "Pacing roads unknown,Searching for a new home" just sounds like he's leaving his past behind and trying to find a new meaning to his life,but there's still a reminder of his past inside him "Desert in my eye,Barren lands inside."