Shadow People

What makes someone perceptible to the other realm? What is it even? Last February I started seeing shadow people in my peripheral. I looked in the mirror and there was a face in the shower curtain or grinning at me from the darkened apartment behind me. I'd see long, skinny shadow people walking into rooms. I'd see the glint of grinning teeth in the shine of a plastic cabinet in the back of a dark room.

What do you do when shadow people are stalking you? Who do you call?, as they say. I called Wikipedia. 

Shadow people are supernatural shadow-like humanoid figures that, according to believers, are seen flickering on walls and ceilings in the viewer's peripheral vision.^[1] They are often reported moving with quick, jerky movements, and quickly disintegrate into walls or mirrors. They are believed to be evil and aggressive in nature, although a few people consider them to be a form of guardian angel.^[2]In 2010, the apparitions were described as one of the most regularly reported paranormal phenomena in the United States. This is attributed to occasional reports on the Coast to Coast AM show, where paranormal researcher Heidi Hollis has been interviewed several times on the subject of shadow people. Hollis believes that shadow people have always existed, that they feed upon emotions of fear, and that they can be repelled by thinking positively.^[2] Others believe that shadow people may be the extra-dimensional inhabitants of another universe.^{[citation needed]}The stories of shadow people have been compared to those of the Raven Mocker, a witch from Cherokee mythology who sometimes appears as a shadowy phantom, and the Islamic Jinn.^[2]Several scientific principles can be used to explain reports of apparitional experiences such as shadow people. These include optical illusions or hallucinations brought on by physiological or psychological circumstances, drug use or side effects of medication, and the interaction of external agents on the human body. Another reason that could be behind the illusion is sleep deprivation, which may lead to hallucinations.

NOTE: They feed upon emotions of fear, and they can be repelled by thinking positively.
I took a pair of scissors and snipped off a lock of my hair. Then I got a piece of red string because red is supposedly lucky. I tied the string around the lock of my hair and hung the string from the top of the door where I kept seeing those spooky apparitions. I then focused my energy in a positive direction. Channeling my thoughts away from spooky evil faces and visualizing instead peace and harmony. For as long as that room remained empty that red string and lock of hair kept the menace out. Not, probably, from any magic in the thing, but from the reassurance it gave me in pretending to believe.