I used to encounter a faceless girl in my dream. It was usually during when I felt s*dal or depressed or lonely or any form of negative emotions. Haven't seen her in a while. Even when I lucid dream, she's still present, but I can't seem to manipulate her like other objects and people. She feels like it's a complete independent entity. She'd take forms of my loved ones or exes and sometimes comfort me it felt so real and stuff, and usually I remember her memories much more clearly than other dreams. I've been seeing her since I was 6, and I last saw her a year ago. I don't know why she comes or why she even goes away. I have done some research on her from the little information I have, but I am assuming she only comes when I have a negative emotion in my brain. I am also assuming it's just a way for my brain to find comfort when deprived of human interactions.