When trying to figure out what a dream means you should first, like ChennyVoo said, analyz it carefully.
- What you dreamed about ( being it symbols, bugs, animals, plants, doors etc. )
- The condition of what you dreamed. ( Per exmp: If it was a door, in what condition was it? Was it broken, chipped, open, closed, perfectly normal ? etc.. )
- What are your feelings towards it ( Did you felt fear, anger, love, sadness, happiness etc )
If you're not sure, you can always look up the meaning. Per exmp, if you dreamed about a symbol in a form of a spider, it'll probably mean danger. It could be a warning that you should pay attention to something.