In this picture, do you see an old woman or a young woman? Can you change your perception to see both? I saw this picture as a child in a museum of science, and have always been fascinated with it. Later in life I realized the deeper meaning that its very possible to see something different when a situation is simply viewed differently. Here's another version:
Gem of Wisdom: If you ever feel stuck, try to look at a problem, situation or disagreement from a different perspective.