Dreams...
A part of me wants to say that Dreams dont really mean anything deep and that its just your mind's way of relieving all the unfinished stress of the previous day.
But at the same time they tend to mimic your own outlook on the world.
I dont really know much about psychology, but I'd imagine that your tired. Tired of doing something that you dont like. Something that you want to get through or over with, but you feel that if you stop then bad things will happen.
if your 17 (like you said when you responded to that guy below) then perhaps its the prospect of school, and the building would be the peace that you would get after finishing and getting through that part in your life (or perhaps getting out of the house and starting your own life), but of course I could be wrong, the guy below me seems to know what he's talking about more than I.
I'd say the best oppinion you could get would be from someone who knows you.
I'll admit the flash itself isnt the greatest, but it did a good job of conveying the images and ideas of your dream I think (I dont know for sure since I didnt have the dream)
So good work