What do you guys think Lorraine saw?

That's what I thought too. It must have been an extremely traumatizing experience. I have never really seen a scary devil character in a movie so we as humans must have no clue what the devil really is or looks like. That's a scary thought!!

I think she saw Satan as well.

I think she saw hell itself or heard Satan whispering through the man they performed an exorcism on. Great scene!

The devil? Wow. I thought she got a glimpse of hell or the demon in its full form, but never thought of Satan.

Nic Cage's audition video.

Its clearly stated in the movie - Conjuring 2.
She had a premonition of her husband's (Ed Warren) death. She wanted it all to stop and therefore locked herself in her room for 8 days without talking or eating.

Who cares...? This was one of the film's silliest manipulative quirks. Poor, bold Lorraine, almost a female version of Father Lankester Merrin! She will brave the Witch, with her husband by her side! Into the fray! But not before several heavy references from Ed that he wants her to stay out of this one, because she loses a little piece of herself during each incident, and in one former encounter, she - think Drama Queen - shut herself in her room for eight days without speaking a word. Perhaps Ed was permitted to slip very thin meals under her door. But not only does she never divulge what she saw to Ed. Ed doesn't have the gall to ask her what it was that incapacitated her for that fateful, grim week. Talk about Marital Secrets... And the filmmakers kindly afford us a flashback to THAT demonic incident. A flashback that shows everything except what caused Lorraine's eight-day shut-down. The story, the buildup, the flashback: what a waste of film and viewer attention. Absolute manipulative junk.

I really wish they hadn't revealed what it was in the sequel. To me, it really took away the creepiness of it, leaving it up to the audiences' interpretation of what shook her up so bad.