This is an abstract design created by Mario Castillo for Eda Arts. It symbolizes in an abstract form his theories of Perceptualism. In a Perceptualist artwork, the viewers fix their eyes on a center spot for 10 seconds or more and then they start to see the color fluctuate because of the retention of the after-image effect. See Perceptualism paintings by Castillo at mariocastillo.com or mariocastillo.net