Well, the elevators depict rising. In some cases, they also fall. So it could mean that you are making progress with something, or that you are going up and down with it (though, i would imagine that as a roller coaster). The dead bodies could mean a couple of things. By getting where you're getting, other people have been hurt. Maybe the dead bodies are an obstacle that you have had to face to get there, or maybe even a fear you have about it. Thoughts?