If you see them moving, that means you are under pressure. The speed of the moving is the level of your pressure. The higher that moving speed, the higher pressure you have. Most children and old men only see static pictures. If you see the pattern moving in a slow motion, that means you have a bit of pressure at this very moment. Test yourself regularly with these pictures to know yourself better. Sometimes, it is good to have an appropriate pressure to push us to do better, but too much pressure can cause physical and emotional harm.