Shadow Creatures
Could it be that these shadow creatures are actual real life forms which have gone undetected for centuries simply because we can not always see them at will. it's like bacteria, you cant see it unless you have a special microscope, in this case we would need a special lens. I believe that they are possibly shape shifters which would make them intelligent creatures, changing and taking the forms of people, animals, and also images seen on TV or found in other forms of media, which would explain people seeing ghosts wearing gear from history, for example a ghost wearing clothes from the 1700s etc.
The shadow creatures have the same density as air and thrive off of energy, just because their density is similar to air doesn't mean they are not a real life form. They seem to be domesticated, living in homes among humans. From what i have read from people that claim to have seen them, these creatures have been known to move things, have you ever thought you misplaced something, or were sure you put it somewhere else but found it in a different location? They are able to survive because they can not be seen, most of us are not aware of them yet and some of us who have not seen them still feel like we are being watched when we are alone. I believe they are intelligent creatures, it would explain how they can easily shift and live undetected. I believe they have a long life span, as they tend to live in older homes and have been noticed by generations of individuals who lived in these homes and thought them ghosts. The creatures seem to be comfortable with familiar surroundings, this is why they are mostly found in older homes. They tend to be most alert when we sleep, again this is for their own survival, why not walk move around while humans sleep? City animals come out at night such as raccoons late in the evening, this is when they feel safe. These shadow creatures fear us, they have seen what we are capable of. We sense them when we sleep, it's like having a burglar in the home and feeling an intrusion.
I think this world and universe we live in is full of surprises and other life forms yet to be discovered, and the interpretation found in religion impedes our discovery.
Alicia from Canada.