Concentric rectangular lines radiate outward from a central vertical axis, creating a symmetrical pattern that oscillates between advance and recession. The composition is rendered entirely in black ink on white, with thousands of precise parallel lines building an optical illusion of depth and movement that appears to breathe. Printed on smooth white card stock and made to order, artwork on the front, blank inside, envelopes included in every set. A handwritten note that arrives as an independent artist's work.