Buyakasha! Another interesting variation of a spiral optical illusion. Long time visitors will immediately, and by intuition know where the illusion hides, while rest of you will need few seconds before it comes to your attention. When you look at this drawing, you immediately see spiral pattern standing out against a grayish background. Try to trace the spiral with your finger – It isn’t there! The short curved lines really make circles, and your brain, confused by the background, mistakenly links the short lines and interprets them as a nonexistent spiral.
