I've always thought that the deepest scene for me in the film was during the time between the attempts at exorcsicm when Karras was visited by apparitions of his dead mother in Regan's bed. Â It wasn't necessarily his dead mother appearing before him, it was the fact that you could hear Regan gasping for breath, as if she were just on the “other” side, very close to being herself until she utters “Why, Dimmy?” Â Karras couldn't give her any medication, as he told Merrin, “She'll go into a coma.” Â That scene has always tugged at my heartstrings and I've always felt that Regan was right there, so close yet under such intense possession that there just wasn't any way to reach her and pull her through her awful experience.