The roof or ceiling on the top of the house symbolizes the head or brain in that the house becomes a symbol of a person or body. It also implies a top post, a leader and a high position. A dream of setting up an antenna on the roof indicates that he is bent on collecting information while struggling to achieve his ambition. If you are an office worker, it indicates that you are trying to figure out the trends of high-ranking bosses to take on heavy responsibility.