Maybe it was flashes from the future? I am not really sure, I would look at all the symbols that stand out the most in the dream but even ones that seem to have no significance like a building still may have significance. Look them up on the internet, it is a good place to start. However like my dreams of being able to manifest or control different elemental energies in my dreams I cannot find any meaning to those what so ever, I guess they are not experienced very often, so I am left to figure it out on my own lol.