Existance of true shadow beings

I understand being skeptic if this entity if you have not seen it but I’m afraid to tell you that like myself, thousands have in fact seen them..and in fact when I saw him I knew nothing of their existance..I saw him straight on..he did not dart away when I looked at him but rather he continued to walk slowly up the basement stairs and into the wall at the top of stairs..I’ve had so many health problems it is truly unbelievable and I’m starting to believe he is the cause..I do think they observe but I believe it is only to find out what fears us..and he will use those fears to manipulate nightmares! I do believe they have ill intent..they are not innocent observers!