Blue has no dimensions, it is beyond dimensions, whereas the other colours are not....All colours arouse specific associative ideas, psychologically material or tangible, while blue suggests at most the sea and sky, and they, after all, are in actual, visible nature what is most abstract.
Yves KleinI remain detached and distant, but it is under my eyes and my orders that the work of art must create itself. Then, when the creation starts, I stand there, present at the ceremony, immaculate, calm, relaxed... ready to welcome the work of art that is coming into existence in the tangible world.
Yves Klein