The man in this photo represents a person that is addicted to cigarettes. While having a break to catch some fresh air, the man chooses to have a cigarette. The expression of the man in picture number four and five (start counting from the upper lefthand corner to the bottom righthand corner) show how addicted he is, willing to sacrifice his fresh air for nicotine. By the time he finishes the cigarette he disappears in the dark to continue doing his work.
Thanks M.W. for helping me shoot this precious series of photos.