The interior of the Ferdinand Baumann Gallery consists of two glass cases and a small room, glazed on one side and surrounded by a wall on the other. On the wall I have set a projection of a pulsing Sun, accompanied by the recording of a noise composition created by Michal Cáb especially for this project. On the projection wall I drew with a charcoal, while at the same time Františka Loubat was cleaning the glass wall, so dirty that it was opaque. We then carried on the work, alternating in drawing and cleaning the window, until the the work was ready after roughly an hour.