This interaction touches the surfaces and manipulates their density, transparency and reflection. Perspectives are revealed. Corners are turned. The depth dimension is revealed. The position and size of the fenestration in a room is of paramount importance.
Daylight is the largest contributing natural factor to the atmosphere of any interior.
Additionally modern lighting is able to replicate, imitate, enhance, change or contradict these natural effects. Without light we cannot see, and similarly what is not lit remains unseen. Light and shadow modulate the experiential space yet the physical dimensions remain unchanged. Ancient traditions in building placed great significance upon the orientation and site choice of a building. In oriental custom the feng shui adviser is consulted to determine the best spiritual location and placement before the building is designed.