What does this dream mean?

So in this dream I've had many times is about me in like some kind of labyrinth/maze and I as I walk down it I pass terrifying visions hellish violent disturbing ones me killing my whole family, and I as continue I see more and more and I cant get out. Then theres this woman in all white dress with a veil and for some reason I'm running from her, but she always gets me and I wake up sweating. I wrote a song about this on guitar. It sounded like a good metal song. I seriously don't understand why I would be killing everyone.