Study for Homage to the Square: Floating Aura

Albers said about his paintings "they are juxtaposed for various and changing visual effects. They are to challenge or to echo each other, to support or oppose one another. The contacts, respectively boundaries, between them may vary from soft to hard touches, may mean pull and push besides clashes, but also embracing, intersecting, penetrating.
Such color deceptions prove that we see colors almost never unrelated to each other and therefore unchanged; that color is changing continually: with changing light, with changing shape and placement, and with quantity which denotes either amount (a real extension) or number (recurrence). And just as influential are changes in perception depending on changes of mood and consequently of receptiveness."