project

 What do you see?  i know at first glance you saw a private part, but if you look closer you can see that this just a optical illusion this image is actually a lamp and a wall. 

Optical illusions are images or pictures that we perceive differently than they really are. Put another way, Optical illusions occur when our eyes send information to our brains that tricks us into perceiving something that does not match reality. 
The word “illusion" comes from the Latin word illudere, which means “to mock." Some optical illusions are physiological. This means that they're caused by some sort of physical means in the eyes or the brain.
Other optical illusions are cognitive . cognitive illusions, such as ambiguous, distorting and paradox illusions, occur when our brains automatically make assumptions based on the information sent from the eyes. These illusions are sometimes called “mind games." 
ambiguous illusions are pictures or objects that can be seen in more than one way.  
Distorting illusions use different techniques to make objects of similar size, length or curvature appear distorted
Paradox illusions occur as a result of pictures or objects that cannot exist or are physically impossible.Paradox illusions are popular in works of art, such as those made famous by artist M. C. Escher.