The reciprocal relation of color to color produces a phenomenon of a more mysterious order. This new phenomenon is psychological. A high sensitivity is necessary in order to expand color into the sphere of the surreal without losing creative ground. Color stimulates certain moods in us. It awakens joy or fear in accordance with its figuration. In fact, the whole world, as we experience it visually, comes to us through the mystic realm of color. Our entire being is nourished by it. This mystic quality of color should likewise find expression in a work of art.

'Search for the Real in the Visual Arts', p. 45 - Search for the Real and Other Essays (1948)