The classic riddle was meant to be heard of course. Its answers are contained in its questions; and on the smallest piece of itself this possibility depends upon SOUND - "utterly," like they say ... the pun is pivot. Therefore, my RIDDLE OF LUMEN depends upon qualities of LIGHT. All films do, of course. But with THE RIDDLE OF LUMEN the "hero" of the film is light itself. It is the film I'd long wanted to make - inspired by the sense and specific formal possibility of the classical English Language riddle ... only one appropriate to film and, thus, as distinct from language as I could make it.