When Light Begins to Look Like an Object
Human vision is remarkably good at finding patterns.
This ability has helped humans recognize faces, movement, animals, and potential dangers throughout evolution. That same ability can cause us to interpret ambiguous shapes as familiar objects.
A bright patch of light can become a figure.
A vertical beam can appear to have a body.
A shifting glow can look as though it is moving with intention.
When the shape is bright enough and sharply contrasted against the surrounding sky, the impression can become surprisingly convincing.
The observer does not experience it as a collection of scattered rays of sunlight.
They experience it as something.
That distinction is important.
The physical phenomenon may be produced entirely by light and atmosphere. The brain organizes what the eyes receive into an apparently recognizable form.
The Role of Sunlight
