HI there, Snowpea, Rainbow, Joy and Pat....WEll yes, I found the whole concept fabulous, to "Symbolise the Etheric Body". Glad that I posted this then Pat, no telling when you would have found this out.

The reason I was taken with the whole concept was, the last book I had bought was "Light Years" by Brian Clegg. When this post came to mind, it reminded me of the book, forgot I had it.....
Taken from the back cover.......
We are creatures of light: physically and spiritually dependant on this paradoxial phenomenon that is taken for granted yet remains deeply mysterious. Light Years tells the story of light through the remarkable people who have been captivated by it. From Neolithic man's worship of light at Stonehenge to the impressionist's revolutionary observations of light in painting and the shattering conlusions of Einstein and Feynman, Light years explores each stage of this extraordinary saga of discovery.
Light Years is the ultimate odyssey into the heart of the most beautiful and most startling phenomenon in all of nature- light.
According to Einstein, nothing can travel faster than the speed of light. Yet in 1994, Professor Gunter Nimtz sent a recording of Mozart's 40th symphony through a physical barrier at four times the speed of light
anyway, enough, I dont want to bore you with the details 
I love it, truly fascinating.
Byee...V.. 