Illusions exercise the brain and mind so that they may be opened to and prepared for the Art of Divination.
When you look at this picture close range you see Albert Einstein. Now stand up and take several steps back, roughly 15 feet away. It will become Marilyn Monroe.
Is this window on the right or left of this building?
The Spinning Dancer appears to move both clockwise and counter-clockwise. Stare at her long enough and you will be able to see her rotate both ways.
How many legs does this elephant have?
What do you see at first glance - an old woman or a young miss?
Profile of Salvador Dali and a strange woman
An old couple remembering the times when they were young and full of life. Can you see the sitting couple?