Science does not be aware of the reality of mystic phenomena, ghosts. So that, in this article I am going to describe some natural causes scientifically this makes or creates ghost.
Hallucination: – “In the broadest sense of the word, is a perception in the absence of a stimulus. In a stricter sense, hallucinations are defined as perception in a conscious and awake state in the absence of external which have qualities of real perception.”(Wikipedia) This may occur in some mental abnormalities and disease states.
Illusions:- This is mostly connected with the characteristics of strange arrangement of visual images, lighting and the surveillance of the things not before seen in this viewpoint. For example, clouds, clouds of smoke, crack in the stone architecture, single dot in paper and so on. Compare to hallucinations, optical illusions can be fixed by technical changes.
Mirage:- This is considered as a unusual case of illusions, with the difference that the object seen by the witness is real, but its image at the expense of those or other optical effects “translates” the place where the inspection of the object in ordinary state is not possible.
Conscious Mystification:- Most of the exciting communications and documentary evidence of ghosts are simply fake, made to promote certain places or get attention to specific individuals. It is noted that all of these evidence have never passed as true by scientific experiments.
Legend Stories:- In our society appearance of legends after the death, ancient ghost stories and fairy tales were told to person to person continually. As a result, people always try to connect some of their life incidents to with those stories, which make them believe in ghost.