Our Every Day Oracle

What shape do you see in the image above? Many of us have thought for a moment that we had found a unique shape in the silhouette of a rock, in a stain on the wall, in the dregs of our morning coffee, or even in a passing cloud. Because this is the illustration of a very rich chapter in the history of psychology, phenomenology and semiotics, signed by the Swiss psychiatrist Hermann Rorschach, inventor of the homonymous test that popularized it.