Nightmares

I had several nightmares last night, one after another.  I had only been asleep for about less than one sleep cycle when I jolted awake with a scream, startled to feel the presence of someone in the room; but, Cindy was downstairs.  And, as I took inventory of the room, nobody was in it but me.  I went back to sleep.  All night long, I drempt of possessions.  At one point, we exhumed the bodies of my Wife's grandmother and uncle, who sat up in their coffins, possessed.  I did my best to exercise all demons.  It was a struggle.  I did not sleep well.  It left me thinking, was this the beef stroganoff, stress from the week, or was this a witch attack or demonic forces?  I lean toward the latter.  But, why...