This exercise is on a higher level and will work out only if you have mastered the ones given above. What you have to do here is, draw a geometrical figure on a sheet of paper. It can be circle, triangle or rectangle. But whatever it is, make sure it is small and not overtly huge. Now fill the inside of the figure with a bright and contrasting color such as red or yellow or black. Then comes the tough part, look at the picture in front of you and visualize the figure alone. Ignore the color, ignore your surroundings and completely block out any thoughts from your mind. Simply look at the paper and imaging the figure or outline of the picture.

Please refer to the book for more details on this activity.