Can you describe it a little more? Was it semetrical or amorphic? Was it solid or how was it constructed? Where there any colors? Did you get any feelings from it? Can you remember any other details of the dream?
The general meaning of complex geometric patterns can relate to complex personallity, behavioral or relationship patterns and math, or more specifically geometry. Dreaming of such complex shapes may relate to the way you think, how you feel about your overall life. It might be your mind just telling that you either are or should be more creative or constructive in life. But like all symbols its litteral meaning depends on specifically what was going on with the shape and the rest of the dream and ultimately what comes to mind when you think about it.
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