Do you feel it rotating.... It's an actually an illusion!





What did you see...?





Can you see some dark holes? It's an actually an illusion! There are white spots only.




Spiral? No Only concentric circles - (Spiral is an illusion!)





All the lines are parallel!




Is it in a 3D or 2D plane?





Feel Different lengths? It's an actually an illusion! All are of same length!




Ups & dips OR Dips & Ups -- Can consider as both!





Moving....? Actually not moving...





What do you see? A distorted image or a perfect design?





Pulling Inwards?




Nonparallel Lines? No all are parallel.




Moving?




Are the thick-black-lines are bend? No straight parallel lines