There are 7 basic types of haunting or Ghost: intelligent, residual, demonic, demonic possessed Intelligent human entitiy, poltergeist and shadow people
The following is some information on five basic categories and some information pertaining to each that can be considered "subcategories"
Not all hauntings can be easily categorized and we must be careful not to jump to conclusions in any case. In some cases, what appears to be the work of a human agent may actually be that of the spirits, and vice versa. There is also a multitude of exterior factors that do affect the circumstances that be. Solar flares, the earth's magnetic fields, storms, etc. all a play an important role when trying to discern the cause of and effect of paranormal or ghostly occurrences.
Intelligent Haunting
In this type of haunting, you are dealing with an "intelligent" presence that can communicate with you, and interact with you in a seemingly "intelligent" way. An intelligent ghost haunting is best described as a responsive usually human entity with whom you have interactive intelligent communication. This type entity is seemingly the personality of a person who once lived, and who is either "trapped" in our world or in between ours and another realm or has already moved onto the next plane and can now freely travel back and forth between our realm and theirs, and or presumably elsewhere. Intelligent ghosts are not "evil" or "dangerous" as some people would have you believe. "Intelligent"ghosts are simply human personalities, and if the spirit was a kind and caring person in life, the spirit will most likely be the same way in death. Likewise, angry and mean people will usually keep those same negative character traits as spirits. An intelligent haunting/ghost will likely seek to get the attention of living people. To get attention, the ghost may try turning things on and off, hiding objects, moving things, make noises, and other type of annoying or nuisance behavior.
The ghost/spirit may be looking for assistance to pass over or for assistance to accomplish a certain task, or may just be letting you know they are around with no other intent or need. Occasionally the human entity is stuck in a death state and does not know they are dead and is simply continuing with life as unusual. The ghost has somehow been trapped between two planes of existence and is unable to move on. However, more times than not thouh, the entities we comes across are able to move about freely, coming and going as they choose.
The key factor in an intelligent haunting is that the ghost can interact with you (communication-it responds and notices human beings). If the ghost does not notice you or other human beings, and cannot interact or communicate with you, it's not an intelligent haunting.
Demonic Possessed Human Entity - Intelligent
This type of entity is overlooked by most within the field. I recently added this to the list of Types of Entities in hope of better recognition of it within the field. My thoughts are that more talk about this, the more people will understand the importance of this type of entity being categorized.
Living humans can experience a negative demonic like oppression or possession. The demon or negative entity covenants the soul/energy/consciousness. This negative force does not possess the physical body, but can control it while it is still attached to the human's center conscious energy (soul) that makes that person who they are. If a living person is possessed, they can remain under the oppression or possession even when their bodies die. Furthermore a human entity (one without a body any longer) can come under attack from a demon or negative entity (even a possessed human entity) while on the other side and become oppressed or possessed even if they weren't while living.
These type of entities seem to have greater capabilities and strength to accomplish more than your ordinary intelligent human ghost. They are just as dangerous as a demon due to their possession and twisted mindset. They can easily move objects, hurt people and pets, and oppress and possess.
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