The grey box is a specific man-made grey space, 3 meters in height, 4 meters in width, and 2.5 meters in depth. In this space, a lot of inexplicable things happen. These things are arranged deliberately, but they may go out of control and get transformed while they happen. I arrange things to have a specific meaning, to show a certain concept, make a point or give some hint. However, in the event it is goes against my original intentions, and becomes independent and strange. So I think this series of photos can be counted as a piece of work.