The Chinese name of this painting is "Blank Signature". I don't know why it is the "power of attorney" in the art book.

This painting uses techniques similar to Schuster's fork and shows how ideas can't be constructed. The mind combines these independent elements into a coherent whole. Therefore, the horse was separated by a piece of background grass. In addition, one of the trunks is in front of the horse, but its foundation is behind the horse. Of course, these factors seem to be inconsistent with our concept of riders in the forest. For example, it is considered as an occlusion illusion, because the inversion of closure is enough to produce a consistent image.

The purpose of surrealism is to transcend the realistic description of the scene that ordinary perception can obtain. Under the influence of new psychoanalysis, surrealists use dream analysis and other techniques to reveal the symbol of unconscious thinking operation and unconscious work. Not many of Magritte's works are composed of inconsistent images, but at least one famous image is like this, with a blank signature.