The illusion of the Miracle

What represents this curious form ? A miracle ?

To discover what is hidden, attentively fix the 4 black spots of the center during 30 seconds, Then look at a blank white wall, or a piece of paper, or on the white space near image. What do you see?

On the white zone which appears, you should see a famous character of the History (to accentuate the effect you can close or blink eyes).

This illusion, is due to retinal persistence. Indeed, if you reverse the colors of this image, you will very clearly see this character.