Hey no problem, I have just woken up after a VERY surreal (if not somewhat disturbing) dream
. I think firstly that the light inferred by the diagram (post #82) containing Ayat An Nur (Sign of The Light) is of a different nature to the mundane light that is 'refracted' into the prismatic colours by the prism. The reason that the prism first came up was due to a post (quoted I think) that was upon Isaac Newton and the connection to the knowledge of/allusion to optics/light prevalent in the Islamic world and certainly within the Quran and Hadith (sayings/traditions of Muhammad), and more widely within the Islamic sciences.
The ten spheres (there is a hidden eleventh - Da'ath) are said to be emanations (sephira), with there source being light bursting into creation. There is really a whole lot I could post on this specific with a little research, but it is often described as 'light' manifesting in Kether/Crown (Sephira 1) descending the tree as a flaming sword...
So he drove out the man; and he placed at the east of the garden of Eden Cherubims, and a flaming sword which turned every way, to keep the way of the tree of life. (Genesis 3:24)
I think my thoughts on how the prism fits into the schema of the tree of life, is very much after the pattern of the flaming sword (as illustrated by the white line in the image above descending the tree). I will very briefly touch on the first 3 (4 if including the invisible sephira - Da'ath/Knowledge). The first sephira is known as the Crown (Kether) (i.e. in a psychological sense and as pertaining to man the Crown of Adam Kadmon OR of the second Adam, Jehehshuah, and thus by implication all 'sons' of Adam [1 or 2]), the second is Wisdom (Chokmah) and the third is Understanding (Binah). I think that if we consider mundane light as a metaphor for the 'light of inspiration' then in its pure state it would descend the first three as 'white light' with the 'refration' beginning to occur at the point of the 'abyss'/Daath/Knowledge. I'm not sure how this would occur fully, certainly not as with the prism, rather I suppose with each following sphere 'filtering' some of the light. The spheres are sometimes related in correspondence to precious stones and metals, so I suppose one could strike the metaphor of each sphere (i.e. the lower seven) being able to correspond to one of the prismatic colours. I would however be very suprised if the attributed precious stones corresponded to the light refractive index we see with the prism (actually not just suprised...I'd be spooked!!!!). This said there is ceratinly an allusion to colour with the spheres, and thus by implication refracted light. As to which sphere corresponds to which colour....I would not exactly know where to begin on this...but maybe simply in an order in relation to frequency/refractive index (not sure if they are the right terms as my physics isn't that great as I said).