Apparitions, Poltergeists, Residual Hauntings, and Time Slips

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According to paranormal experts, and a few more from me, listed are thirteen classifications of ghosts commonly encountered. Find out what these classifications are and the differences between various kinds of ghosts, or spirits, one might encounter.

Humankind Documents Seeing Ghosts for Centuries

Significantly, since the beginning of recorded history, people have reported seeing ghosts. Of interest, claimed sightings of ghosts come from the remote jungles of the Amazon to the skyscrapers of New York City. Furthermore, what many don’t realize is that these manifestations appear in different guises and forms.

Ghosts Are Now the Rage

Currently, claimed ghost sightings and paranormal activity fill the airways on TV cable and YouTube channels. Why is this? Because, the average person, more than ever before, is willing to share with the world their experiences with ghosts. In fact, huge audiences are hungering for these types of first-hand accounts of haunting activity.

Notably, filmed paranormal events posted on websites and social media appear everywhere. Not to mention, new technology enables documenting spirits more than ever before. However, despite substantial evidence of ghostly activity caught on phones and cameras, science and skeptics refuse to believe that ghosts exist.

Will You Ever See a Ghost?

According to Roger Clarke in his groundbreaking book, Ghosts, 2012, the chances of a person seeing a ghost during their lifetime is one in ten. Similarly, experts in the paranormal field, assert that there’s too much evidence and for too long a time to dismiss the reality of ghosts.

All Kinds of People See Ghosts

Who can see a ghost? The simple answer is almost anyone. Equally important, witnesses of ghosts range in age from the very young to the very old. Furthermore, honest and highly credible individuals report seeing ghosts.

Interestingly, some individuals see a ghost only once in a lifetime while others encounter them ghosts quite regularly. In reality, people claim seeing or experience ghostly phenomena in locations that are not only old or abandoned, but in modern dwellings as well.

Furthermore, groups of individuals claim seeing ghosts. Case in point:

Time Slip at Gettysburg College

Mark Nesbitt, one of the foremost authors on the ghosts of Gettysburg, relates one of the area’s most frightening occurrences.

Case in point, two administrators at the Pennsylvania Hall at Gettysburg College were leaving work one evening. The two women stepped onto the elevator, as usual, to go from the 4th to the first floor. They never expected what happened next!

Elevator Takes the Women to the Past

Mysteriously, the elevator passed the first floor and continued to the basement. When the doors opened, the two women could scarcely believe their eyes. What should be storage space, was now a horrific scene from hell. Dead and dying men were lying about on tables and the floor. Removed arms and legs littered the space.

To add to this, blood-soaked doctors and orderlies were chaotically rushing about trying desperately to save the lives. Amazingly, no sound emanated from the ghastly scene, but both administrators clearly saw it.

Horrified, they frantically jabbed the elevator button to close the doors. As the doors finally closed, one woman chillingly recalled that one of the orderlies looked directly at the women with a pleading expression on his face.

A Former Battlefield Hospital

Foremost in their minds, the women knew that the building had served as a makeshift surgery during the civil war battle of Gettysburg. This bloody battle took place over one hundred years before. Somehow, this window into the past opened, allowing the two unwilling witnesses to glimpse the chaos and frantic efforts of doctors to save dozens of severely wounded soldiers.
by Stephen Wagner


How Ghosts Act

Ghosts often manifest suddenly. Some specters just stand there, and some flit quickly across the room disappearing through walls and other impossible actions.

Expressions of ghosts, if discernible, can be that of peacefulness, in distress, or looking angry or menacing.

In particular, the appearance of ghosts vary from vague wispy forms to full-bodied figures that look completely solid and touchable. Lifelike apparitions are often mistaken for a real person.

Shockingly, some ghosts are seen as dark undulating masses that have no discernible form and are devoid of facial features or limbs. Moreover, others witness darker human-like forms that are sometimes called, shadow figures.

Indeed, it seems that ghosts and sightings of ghosts follow no set rules.

Author, Peter Underwood’s Ghost List

Peter Underwood (May 16, 1923 – November 26, 2014), a respected ghost hunter and author of numerous books on ghosts, set forth a taxonomy consisting of eight ghost categories. I’ve taken the liberty of adding more ghostly categories to this list.

1. Apparitions: Full-Bodied or Partial

An apparition, in terms of ghosts, is a sudden supernatural appearance of a person or thing that is not alive and not made of flesh and blood. Of special note, other names for apparitions are a specter, shade, phantom, or wraith.

Additionally, this kind of ghost usually has a recognizable human form. What is more, either all or part of the ghostly figure is visible and is usually in varying degrees of transparency.

2. Crisis Apparitions

Specifically, Crisis Apparitions appear suddenly and then are gone usually with no explanation as to why. Crisis apparitions usually happen when a loved on has suddenly died or has been seriously injured.Loved ones witnessing a crisis apparition often have a sense of foreboding as to why they are seeing them.

3. Residual Ghosts – Mental Imprint

Energy imprinted on an environment usually resulting from past traumatic events. Somehow, an effusion of mental energy soaks into a particular location. This classification is also known as the “Stone Tape Theory.”

Sometimes these occurrences ‘play’ a mundane scene from the past that has no dark, tragic energy attached. For example, seeing a grandparent that’s deceased casually walk down the stairs of their old home just as they did countless times in life.

4. ‘Intelligent’ Ghosts

These are spirits that can interact with the living either by responding to questions in some manner. Interestingly, they’re also capable of demonstrating emotion.

Nowadays, voices of intelligent spirits are often captured on a recording device or in a video. The voice captures range from hard to understand to highly intelligible.

5. Historical Ghosts

Traditional ghosts are known or recognizable people (or animals) from the past who have died and whose souls interact somehow with the living.

One excellent example of a historical ghost is the reported sighting of Abraham Lincoln. Lincoln has appeared to more than one person in the White House since his tragic death. The most notable of these is Queen Wilhelmina of the Netherlands and Sir Winston Churchill—both staying in the Lincoln bedroom at the time of their sighting.

6. Time Slips

This kind of experience takes place when the witness seemingly steps back into a foregone time. Sometimes, there’s an interaction that takes place between the people experiencing the time-slip and individuals in the past-time environment.

7. Ghosts of the Living (Doppelganger)

Interestingly, Doppelganger sightings are the seeing phantoms of living people, who have not died (aka a ‘doppelganger’), that suggests that some ghosts might be mental projections. A myth claims that if one sees their double, it’s a portent of their death.

Personally, I believe doppelgangers are the subconscious projection of the astral body of a person that has detached from their physical body and appears to someone else. Amazingly, once its “mission” is accomplished, the astral body reattaches to the living person.

8. Poltergeists

Jason Hawes and Grant Wilson in their book, Seeking Spirits, 2009, describe Poltergeists as “a ghost that manifests its presence through rappings, the moving of objects, and the creation of disorder…”

Poltergeist means “noisy ghost” in German. Moreover, these manifestations are usually not apparitions of ghosts at all, but rather objects thrown or knocked off shelves. In rare instances, poltergeists cause the levitation of a person, usually an adolescent. Clearly, the poltergeist phenomenon and still not fully understood as to when and why it happens. What’s even more interesting, Poltergeist activity rarely lasts for any length of time. Most notably, the only case that I know of that lasted for a more extended period is the Bell Witch Haunting.

In contrast, research by paranormal experts says claims of poltergeist activity are explainable by psychological factors such as illusion, memory lapses, and often wishful thinking. Mistakenly, Psychologist Donovan Rawcliffe wrote that almost all poltergeist cases turn out to be hoaxing, while the rest are attributable to psychological factors such as hallucinations.

Conversely, in some investigations, poltergeist disturbances were not found to be fraud or psychological factors, but in fact, are explained by natural phenomena. Of note, skeptic and magician, Milbourne Christopher, cites a 1957 case at Cape Cod, where downdrafts from an uncovered chimney were strong enough to blow a mirror off of a wall, objects off shelves, and overturn chairs.

9. Elemental Spirits

Elementals are nature spirits that have existed long before humanity. Most of these supernatural beings are relatively harmless.

There are many levels of nature spirits. The kinds of elementals I’m referring to here, haunt particular locations–sometimes for centuries. They often have a frightening mixed-animal appearance and are usually detected around ancient burial grounds or in deep forests.

10. Animal Spirits

Not surprising, animal spirits mainly appear as they did in life.  They are usually a beloved pet that has passed. Cats, dogs, and horses constitute the most commonly seen animal spirits.

An exception: Some animal spirits are considered totem power animals. Totem animals are often seen in a vision. These are powerful spirits of animals that shamans summon to serve a specific purpose for an individual, a group, or a tribe.

These spirits impart their most important attributes on to the living to help them accomplish a spiritual task.

11. Jinn/Djinn Spirits of the Middle East

Jinn (singular, jinni; also spelled djinni or genie, are supernatural creatures found in Islamic and Arabic lore. It’s believed that the Jinn were created from a “smokeless and scorching fire.” However, they’ll sometimes appear in human or animal form to interact with people.

Those who believe in Jinn do not mess with them when encountered. Jinn are highly changeable and don’t always interact nicely with the living. In fact, some in Middle Eastern cultures are highly fearful of the Jinn.

12. Astral Shell Bodies

An Astral Corpse is also known as the Astral Shell Body. This body resides in part of a sub-level of the astral plane. It’s the level on the astral which holds human and animal shell casings of souls who have passed. As the astral plane is the closest dimension to our earthly plane, it’s not unusual for a shell apparition to appear for a short moment in time.

These astral shells have no consciousness or intelligence. However, an astral shell is like a holographic image of a person or spirit. You see it, but it’s not really there. Clearly, astral shells are not disembodied spirits, ghosts, or something inhuman–like a demon.

13. Haunted Objects

Commonly reported are pieces of furniture reputedly haunted like a chair, bed, or wardrobe. Not only that, children’s toys often carry spirit energy of a young child.


Notoriously, objects of death and violence, such as swords and pistols, frequently have their owners’ spirits attached to them. Shocking to some, eBay has a brisk business selling haunted furniture as well as personal objects. Therefore, buyer beware and purchase at your own risk! You may get much more than you bargained for.

In conclusion:

Hopefully, you got a lot out of this extended list of ghost classifications. Without a doubt, there’re numerous forms of ghostly manifestations!

Additionally, I want to say that Peter Underwood’s original eight categories were a great starting point. However, in reviewing the list, I felt additional classifications merited inclusion. As a matter of fact, there’s even more classifications of ghosts such as “Message” Ghosts’, Lost Spirits, Spirit Writing, and more.

Have you seen or experienced a ghost? If so, what kind? Leave a comment below.

(Just to be clear, I don’t solve ghost problems in the comments.) Additionally, if you have an inherited spirit hanging about, you’ll want to check out our How to Ghost Hunt Pro course below.


Ghosts and How to See Them, by Peter Underwood, 1993

Supernatural by Colin Wilson, 1997

Ghosts, by Roger Clarke, 2012

by Carol Nicholson, Ph.D., and Certified Psychic-Medium

Hi! I’m Carol Nicholson and I hope you enjoyed this post! I’m dedicated to providing helpful, valuable, and fascinating blogs on a wide range of spiritual and psychic arts topics. Don’t forget to subscribe so you won’t miss out on my most recent posts and announcements of new courses!


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