Ancestors in the Office

Having poured over old family photos and listened to stories the night/weeks before this dream, It was only a matter of time before they permeated my psyche. So, dream goes as follows: I'm in my office at work, though it's supposed to be someones home. Suddenly I realize that a great uncle I never knew was sitting at my desk. He's reading one of my reports from work and pointing out insignificant errors. I angrily approach him and ask him if he knew my father (whom he had disliked). After he acknowledged that he did know my father, I informed him that I was his son and in a cocky and aggressive manner I urged him to leave my office and stop the criticizing. He did so but suddenly the lights in the office fell dark. Then, I wave of panic spread over me and I felt the urge to run away. I went towards the door (now the office looking for like a home) and managed to get it open and run away. Darkened, outside, I was not in any neighborhood I recognized though knew I was in Des Moines. Now I feel I must get to my old apartment but what's preventing me is what I presume to be interstate 235- can't get across it. Desolate streets and darkness prevent me from seeing well but I do manage to make my way through streets. I come across two homes that I aim to cut through- one is blocked by a fence so I try the other. Many obstacles line my path to the old apartment. Dream ends there.