The power of sunlight and the influence of shadows on our perception of reality are often underestimated. On sunny days, like any other object, we project sharp and clear shadows on the ground. It may seem trivial, but these shadows are an integral part of our visual and sometimes emotional experience of space. Making unexpected movements can cause these shadows to 'break', which can cause unintended optical effects. The concept of shadows breaking may seem abstract, but it is based on the idea that any sudden change in a visually stable environment can cause a disruption. When people make unexpected movements, their shadows may suddenly overlap or separate from those of other objects or people. This can have a disorienting effect, not only for the person making the movement, but also for others observing this shadow play.