To dream of reading the map means that you are trying to find the answers to your questions for particular questions. To dream that you cant read or understand the map, means that you are unable to find the solution to your questions. You do not know which direction to choose. The dream in which you see the map that has many different symbols, you should pay attention to these symbols and work the out to understand what the subconscious mind of yours is telling you. Try to remember each symbol and look for their meanings in other dream explanations.
Read more about dreaming of Map in other dream meanings interpretations.