Right Before My Eyes “I'll believe it when I see it:” is one of many common catchy phrases included in our everyday vernacular. A person who states this affirms that he or she will not be misled by other people's assumptions or perceptions of the world. This understanding creates in us a great sense of security about the things we see and, conversely, an inevitable feeling of insecurity in beliefs that are not supported by the vision. Do you believe in ghosts? Angels? Out of body experiences? Would you believe it if you could see them? Maybe not. But it is possible to offer those who refuse to endorse things that exist but cannot be seen a better summary of the evidence, which might make the inability to see something an invalid criterion for belief. Could a summary of the evidence be compiled to support this: our vision is incomplete, incorrect and may even be so misleading as to create something in the brain that does not exist at all, highlighting a brain that is rather visionary. , and less of a journalist. Human beings rarely contemplate the importance of their own blind spot, a place where the processes of neurons come together and form the optic nerve; this is where the brain does not receive any information from the eye about this particular part of the world. What I discovered while entertaining myself with a simple eye exam aimed at revealing the brain's capabilities in dealing with blind spots in the eyes has been fundamental in my exploration of the trust we place in vision, and so I will explain briefly. Our brains can ignore a dot that exists on the page and “fill” the spot with the color of its surroundings, regardless of color. However, it's not that our brains can't design an image or shape to fill that spot. As you continue the experiment, you will find that the brain will continue the line obstructed by the black dot, covering the sides of the dot in the surrounding color and transforming the image in front of you into a line in your brain. A line that is absolutely not there. This reveals more than just a weakness of the eye, but a capacity of the brain! (1)