The Jesus Optical Illusion is a popular afterimage illusion. Stare at the dots in the center of this image for approximately 60 seconds. When the time is up, quickly close your eyes and look at a bright light source (like a lamp). Alternatively, you can also look at a blank wall. You should see a white circle with an image inside of it. If you can get it working properly, you should see an image of Jesus. That certainly makes this a very powerful optical illusion.