Closure

Gestalt Rules of Perceptual Organization
The rules represent different ways we view things as a whole.


Closure
We view objects that are closed together as a whole.  When there are gaps in between lines our mind automatically fills in those gaps to create the big picture.
Look at the picture.


http://graphicdesign.spokanefalls.edu/tutorials/process/gestaltprinciples/gestaltprinc.htm

Your brain automatically placed a line between the panda's ears and along his back. This is an example at how we view objects with the law of closure.