Doppelganger in German it means a look-alike, a double of a living person. From a paranormal perspective there would be a sensation of having glimpsed oneself in one’s own peripheral vision with no chance of the supposed phenomenon having been a reflection.
A doppelganger is often perceived as a sinister form of being in two places at once and is regarded by some as a sign that bad luck is coming. In some traditions, a doppelganger seen by a person’s relative or friend portends illness or danger while seeing one’s own doppelganger is said to be an omen of death.
Recent scientific experimentation has duplicated several doppelganger effects when electrical stimulation was applied to the left temporoparietal junction of a patient’s brain.
In contemporary times, the doppelganger is often used in a more general sense to identify any person that physically or behaviorally resembles another person.
So what do portals between dimensions have to do with doppelgangers? I believe you have a higher chance of seeing your double if you are near a portal/vortex where there are high fluctuations of electrical energy. This brain stimulation is the vehicle to see your double, and it may even appear to interact with you. Portals are areas of thin veil where inter-dimensional beings can come and play. I also believe the human mind in a dream state can also produce at times this powerful electrical pulse to contact this other world and your double.
People who have talked to me about their doubles see them as their double behavioral beings and not as look-alikes. But it is very clear these doubles carry the life essences of the other. I will write more about this in the future because human institutions have tapped into this phenomenon and may be using it for a darker side of reality.
Sleep tight, your double is not far from you.