I know it's a bit late, but just watched The Conjuring yesterday, and I'm very curious to understand one thing:
There is a portion where Ed Warren describes some past incident to Roger Perron (while repairing an old car of Roger's) that Lorraine Warren had seen something when they were performing the exorcism on a demon, and she locked herself in a room for eight days afterward. What had Lorraine seen that made her lock herself in a room for that long?