Answer:
perception is an hollistic process, it is more than the mere sum of its parts
Explanation:
The interconnected parts organize themselves and our brain then reinterprets them in a new way focusing in the whole according to these principles.
Some deliberately use them, as many visual artists, for example take advantage of the perceptual phenomena (continuity, closure,etc) in order to portray a complex representation.
Notice how some small details are integrated as a whole,
The image below is an example by Salvador Dali 1941:
