NARRATOR: One of the most common
and most curious observations reported
by shadow people experiencers
is that these entities are able
to make physical contact with them
but then often disappear
as though they are merely holograms.
OFFUTT: Generally, the shadow people will leave the room.
Either they will dissolve in a puff of smoke,
or they will walk through a door,
and they may or may not be material,
have mass, have structural form.
And there's been talk about,
maybe they come from some other dimension.
We take for granted that we live in a three-dimensional universe.
The quantum theory makes higher dimensions possible.
Think of fish living in a pond, for example.
The pond is two-dimensional,
the fish are stuck in a two-dimensional world.
They cannot visualize a third dimension,
but you could lift one of these fishes
into the third dimension, and they'd be shocked,
shocked to realize there's a whole universe
in the third dimension beyond their pond.
Well, we physicists, some of us believe
that we are the fish.
We spend all our life in a three-dimensional pond
thinking that that's all there is,
when right above us,
there could be higher dimensions,
hyperspatial dimensions up to 11.
RICKSECKER: Theoretically, we have up to 11 dimensions.
There may be other entities and other life-forms
living within these dimensions.
Now, how would they look to us
if they crossed over those dimensions
and entered into our world?
Well, maybe a shadow entity is one
of these interdimensional beings that has crossed over
from some other place in space-time into our world,
and we're seeing them as a shadow
because their energy and their personal resonance
doesn't quite adhere to the energy
and the resonance of our planet.
NOORY: If shadow people exist, and it's very possible
that they do, I think they're coming
from other dimensions within our universe.
I think there are entities that somehow leak through
because some of them even look disoriented,
like they-they don't know where they are.
Somehow they're coming through another dimension into ours,
and we're stuck with them.
NARRATOR: Could it be
that shadow people experiencers are witnessing entities
that are capable of traveling between dimensions?
According to ancient astronaut theorists,
there is evidence
that certain places on Earth act
as interdimensional portals.
RICKSECKER: We see shadow entities
in these certain locations around the world,
in which they seem to appear more often.
There are locations around our planet
where there's more of that earth energy
that is rising out of the ground.
You know, Stonehenge, the pyramids, Carnac,
places with that ancient energy that's rising from the ground.
Now, an interdimensional being may be using those locations
to enter into our domain.
NARRATOR: Some researchers believe
it is also possible that shadow people
can alter the human mind to see into other dimensions.
BIRNES: Ancient peoples believe
that shadow people have the ability
to enter a person's mind
and change that person's perception
so the person can see the spirit.
They've entered from their world into our world.
NARRATOR: According to ancient astronaut theorists,
the notion that the human mind can be altered
to access other dimensions
is supported by experiments
with a powerful hallucinogen called dimethyltryptamine,
or DMT.
Between 1990 and 1995,
scientists at the University of New Mexico administered DMT
to 60 volunteers and were surprised to find
that many of them had very similar visions,
including encounters with strange beings.
Experiments with electric stimulation of the brain
have also caused people
to have unexplainable encounters.
OFFUTT: There was a study
done, uh, in-in Sweden,
where these scientists put electric charges
in certain parts of the brain,
just to see how the subject would react to them.
And a young undergrad was sitting there with a notebook.
And when they increased the voltage
to a certain part of her brain,
she starting pulling away
from something that wasn't there.
And afterwards, uh, when she was asked
by the scientist to describe what was going on,
she said that she saw a shadow entity behind her.
And when the voltage was at its highest,
she said it was trying to take the notebook
and pen out of her hands, and she was jerking
to keep it from removing them.
So, is it some part of our brain that needs an electrical charge
to help us see what's already there?
Very possibly.