Seoul, 2002. A private house built around a dark inner court, rooms stacked like boxes, stairwells with no windows at all. The people who lived there kept late hours and received guests long after dusk, and they asked us for one thing only: a centre. Something the whole house could turn toward once the sun went down, without a single bright ceiling in sight.

One gesture, held in the dark

We answered with a single line of light. A long ribbed tube, warm along its whole length, reaches out across the void of the court and bends once, low, over a shallow basin of water set into the floor. At its mouth the light falls like poured water and lands in the basin, and the basin gives it back to the room. Nothing else is lit. The tube is the drawing; the water is the page.

From the stairs the house reads as one continuous gesture, a stroke of gold suspended in black. Up close the ribbing breaks the glow into small warm ridges, so the line never flattens into a bar of light. The basin does the quieter work: it holds the reflection, doubles the gesture, and sends a faint moving shimmer up the walls whenever the water is disturbed. Rooms that had no windows of their own now borrow this one image, each from its own distance.

Wonder, in the end, is only light given a place to land. We left the house with its court full of gold and its ceilings still dark.