Out of the dark behind the bedspread, the X-shape rushes towards us. It is stopped by the near picture plane we extrude from our eyes. There's an eye-box in graphics space, created to capture creatures like this, with the nearest wall called hither and the farthest wall called yon, perhaps first conceptualized at a time when animals were still plentiful on earth, and boats made out of wood carried harpoons and sank attached to whales. Here, like a timid killer or familiar devil, the X-shape, tries to move sideways, in order to escape attention by becoming part of the dark.