Are you familiar with psychic deals ? It sounds stupid I know, but honestly thats how I explain it. With the good comes the evil. You need to be prepared for those type of situations as normally they are your subconscious attacking itself from to much stress (at least thats what I believe.) If it actually turns into real life stuff (like hallucinating the figures when you are awake) then I would take it a little more seriously, as that is a huge sign of a mental disorder. At least it was just a dream though ... when you have something like a nightmare you will wake up and tell yourself it was only a dream =)
Did you wake up with your body feeling tingly ??