The most important thing is the nature of the item, its essence.
This is the way Jean Nouvel describes his project Flying Surface, because he thinks of this piece more as luminous object rather than a luminaire, looking for the essence of light.
Flying Surface has been developed for the illumination company, Troll in 2006, and it is essentially made with a stretched fabric and produces a floating-like surface when its inside light is switched on.
I think that this is perhaps the most minimalist lighting design that can be made. What can be more simple than a surface of light without anything else?