The existence of paranormal entities is widely debated. Some people have direct experience with non-human and non-living beings, while some dismiss the idea as ridiculous. No matter what you believe, you have probably heard the following terms in reference to supernatural entities and while some terms seem interchangeable, these refer to specific presence.
Spirit - General term for any non-physical entity.
Ghost - The most common term used to refer to a spirit is “ghost”, but “ghost” refers only to spirits of once-living things, like humans and animals.
Poltergeist - The term “poltergeist” refers to two kinds of supernatural activity. One involves spirits, human or otherwise, that cause havoc or chaos. These spirits often manipulate electronics and objects to elicit a reaction from the living. The second form of poltergeist haunting has to do with energies emitted from children or adolescents that manifest physically and cause chaos.
Thoughtforms - Thoughtforms are entities created by thought energy. Though they are usually created for a certain purpose, they can often develop a mind of their own and their own agendas.
Residual Hauntings - Residual hauntings are caused by leftover energy or emotions from a specific event that leaves an imprint in the physical world. These hauntings may manifest as a recurring physical events, such as a certain object being moved over and over again or a specific sound being heard with no source.
Shadow People - Shadow People are figures seen on the edge of one’s vision. They are considered to be bad omens
Parasitic Entities (Demons) - Parasitic entities (including what some refer to as Demons) are supernatural beings that feed off of the energy of a living host or victim.
Doppelgangers - Doppelgangers are spirits that appear in the form of a living person. They are known to appear to a person as themselves to warn them of their imminent death.
Guides - These spirits could have once been human, but do that is not always the case. They linger close to certain people in order to watch over them. These spirits are known to communicate with mediums.