Well, I did it! In an act of bravery (maybe stupidity), I decided because I had a free night to tackle both these films head-on. I will say if stories or films of demonic possession freak you out -- I would not recommend doing this. I barely slept that night and had dreams influenced by both these films.
However, while both films got under my skin, once again I was really impressed with the stories conveyed. My mind definitely started thinking about concepts of how diseases of the mind can impact belief in the paranormal. As well as how different cultures interact with the supernatural and demonic possession in terms of East vs. West.