What is valid for the elements of artistic creation is also valid for their combinations. The painter does not want to draw signs on his canvas, he wants to create a thing. And if he puts together red, yellow, and green, there is no reason why this collection of colours should have a definable significance. [...] they never express his anger, his anguish, or his joy as do words or the expression of the face; they are impregnated with these emotions; and in order for them to have crept into these colours, which by themselves already had something like a meaning, his emotions get mixed up and grow obscure. Nobody can quite recognize them there.

Tintoretto did not choose that yellow rift in the sky above Golgotha to signify anguish or to provoke it. It is anguish and yellow sky at the same time. Not sky of anguish or anguished sky; it is an anguish become thing, an anguish which has turned into yellow rift of sky, and which thereby is submerged and impasted by the qualities peculiar to things, by their impermeability, their extension, their blind permanence, their externality, and that infinity of relations which they maintain with other things. That is, it is no longer readable. It is like an immense and vain effort, forever arrested half-way between sky and earth, to express what their nature keeps them from arresting.