We humans are pattern recognising creatures. Pareidolia is a psychological phenomenon where the watcher or listener perceives an image or sound to be significant.
In this video that I took while on holiday in Jamaica this year, it looks like a demon appears in the window glass. In reality it is no more than a weird looking random stain left by condensation. The 'demon' first seems to appear because the light refracting through the glass renders it invisible until I walk around to capture it at the right angle with my handy HD camera.
The Skeptick's Dictionary has more information on pareidolia
For more Dysology you might like to visit my website: Dysology.org
BAD SCHOLARSHIP, WEIRD BELIEFS AND STRANGELY UNEXPLORED AREAS OF RESEARCH
Identifying strangely neglected areas of research, understanding why orthodox research scholarship and 'knowledge' becomes lopsided, revealing and understanding the reasons for the creation, dissemination and widespread belief in academic and policy oriented research frauds, lies, deceptions, hoaxes, fallacies, myths, braced myths, errors and irrational policymaking.