A dream image representing the albedo, step of alchemy. Albedo is one of the four major stages of the magnum opus; along with nigredo, citrinitas and rubedo. Following the chaos of the nigredo stage, the alchemist undertakes a purification in albedo, which is literally referred to as ablutio – the washing away of impurities. See references about albedo
Surrealism pictures are a branch or better the ancestor of photography based digital art. It is an “old” tachnique, started with the darkroom and used by surrealists as Salvador Dalì in some works of photography. The technique is known as photomontage and consistes in mounting more images into one.