Blue suggests 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