Optical Illusions and Mindfuck

There is optical illusions and there is mind fuck..two different terms, two different things interrelated to each other, both being the manner we see or perceive things around us.

Optical Illusions are visually perceived images that are misleading or deceptive..I am fan of these illusions, like these examples below found in this website.

Mindfuck, meanwhile, is anything that messes or screws the mind. It can be a movie that uses misdirection that leads to an unexpected ending or twists, like the movie " Sixth Sense" "The Usual Suspects" or "The Others".

It can also be a normal, sometimes funny, looking photo with a discreet message, like the ones below. More mindfuck images can be found here.

Either way we look at things, it is always healthy to stimulate our eyes..and brains every now and then, right?