The classified types of ghostly activity are as follows:
1. Poltergeist activity, when an evil presence seems bent on harming people
and causing destruction
('poltergeist' means "noisy spirit")
2. Apparitions Reportedly are capable of communicating with people, as
well as reacting to their external environment.
Apparitions can only be sensed by psychics, and appear to be only visible
from a photographic aspect and appear as
vortexes, orbs, and mists. Though all known types of paranormal activity
could possibility be photographed as such
anomalies, this form of apparition is not detectable by any kind of physical
disturbance. Apparitions, sometimes of
several people, who can be witnessed, but do not react to their external
environment
(including communication with people)
When a person or persons experience extreme trauma or intense emotions, the brain transfers energy to its external environment. This transferred energy repeats or relives the circumstances of the trauma or emotion, often at regular intervals, either in the form of audible sounds or visual light waves.