I recall a similar question being asked here and the word 'lambent' (which has been featured by AWAD twice) coming up, but also this:

"Sunlight on a canal is reflected up through a window onto the ceiling, then from the ceiling onto a vase, and from the vase onto a glass. Which is the real sunlight? Which is the real reflection? What is true? What is not true? The answer is not so simple, because the truth can change. I can change. You can change. That is the Venice effect." - John Berendt, The City of Falling Angels

but, as these things go, none of this is likely related to your quest/ion.