The immaterial told me that I was indeed an occidental, a right-thinking Christian who believes in the 'Resurrection of the flesh'. A whole phenomenology then appeared, but a phenomenology without ideas, or rather without any of the systems of official conventions. What appeared was distinct from form and became Immediacy. 'The mark of the immediate' – that was what I needed.

In 1960; p. 53 - "Yves Klein, 1928 – 1962, Selected Writings"