you probably did meet your Dream Guide, next time ask her for her name... wow that really sounds like a cool dream, almost like a metaphor for how prepared you were. The mob was after you maybe because you weren't fully prepared for that meeting with your DG yet, also the people laughing at you downstairs tied to that as well maybe.. wow! thats cool. just learn her name and if she is your DG you may be able to summon her once you learn a little more.