They call them Shadow people or inter-Dimensional Beings.
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Shadow People or Shadow Beings
A term that is growing in popularity is Shadow People. Recently I've heard many people talk about Shadow People or Shadow Beings. So what exactly is a shadow being? If you talk with a skeptic they will tell you a Shadow Being is your imagination. If you talk to a believer in the paranormal they will tell they could be one of several things. First, it could be a ghost. Yes, most people think of a ghost as being a misty white, having a human form or appearance, even having discernable clothing. Shadow people are also much darker than a ghost and look more like a shadow. Though shadow people do, frequently, have a human form or appearance, because they are dark they lack in details. Because of this, many associate shadow people with a negative energy, or evil, demonic energy rather than merely a ghostly form. This is not necessarily true.
A shadow person may be a demon or malevolent entity. Some researchers speculate that shadow people fall into this category. But these researchers are unable to determine why they appear to the physical human. In this research category many say the common detail of the shadow person as described by the witness is the appearance of glowing red eyes.
Still other researchers contend that shadow people are nothing more than people or the essence of a person who is having an out-of-body experiences, such as astral projection. In this theory researchers believe what people are seeing is the ephemeral astral body of the astral traveler.
Some researchers have put forth the theory that shadow people are time travelers from our future. Because they do not truly exist in our timeframe they become nothing more than shadows in our timeline.
Of course there are some who believe that extraterrestrials are shadow people. Many people who have stated they have seen aliens in their home, that these aliens have the ability to pass through walls, windows (opened or closed) and disappear or appear suddenly. So many associate shadow people with aliens.
A recent poll shows that the majority of people believe that shadow people are interdimensional beings. Now one must determine what an interdimensional being is. Some researchers believe ghosts are interdimensional beings, some believe aliens are us from the future and they time travel to our timeline, thus making them interdimensional beings as well. And yet another theory is that our dimension crosses into another dimension at different points of time and as a result people from that other dimension become shadow people to us, and we become shadow people to them, because we have crossed the vibration line of dimensional zones.
In short, no one is certain what shadow people are. There is clearly not enough evidence or research on this phenomena to determine easily what exactly we see when we see Shadow People!