The phenomenon of the luminous colour, discovered by the artists during their journeys in the Southern countries, appears to us as a means of delineating the known world from the space beyond it. According to the conception of this other world, the colour related to the light creates its proper place, where the human being is condemned to subsist. Pseudo-Aristotle, in his treatise De coloribus, was probably the first to write about the importance of light in the formation of colours and the ability of the solar light to change all colours into golden shades. The “dazzling” world of the sunny countries is characterized by its uniformity of chromatics, which has the property to make the human beings dive into the land of dreams (Delacroix, Le Clézio) and to turn the reality into illusion (Gautier). Moreover, it is this very world “suspended” in the void, this very space in which time is calculated according to specific rules, that leads to the revelation of truth.