Thus Le Corbusier described his response on entering the Green Mosque. To him the most important features were the changes in scale, the light and shade and the rhythm produced by them. Perhaps a summer tourist would also add the change in temperature and quiet inside, in contrast with the bustle in the street outside. Whether we go into a mosque, or our own home, a car, or a cinema, it is the change in light and the change in scale that generally have the most immediate effect upon us. The height of the ceiling, the proximity of the walls, the colours and the types of surfaces, the lighting, whether it is artificial or natural, all affect our reactions to interior space in very complex ways.