The shape that light and a shadow create is able to look only a limited time, a familiar sight changes into specific space. As if it’s the work of art which was drawn by light and a shadow, the whole city is serving as the art museum which displays a precious the work of art.
However, the person doesn't consciously look fixedly at unchanging daily things. And when it was lost, the person has various feelings depending on how to relate to it. The most important thing always exists by our side. The work of art was drawn by light and a shadow into the city was implied that important things for own were overflowing in everyday scene.