finally saw something akin to what I'd imagined when first hearing a Boston-macrobiotic cigarette story, of a teacher who smoked, said: 'oh, there's blue yin smoke that falls, and red yang smoke that rises. Cigarettes are good to smoke if you hold them pointing up so you take in only the yin smoke'. lit from the side with afternoon light, I saw the blue and red smoke, and sometimes green and other colors. Rainbow training! reaching after a dispersing rainbow, having the sensation that we can learn to see them all over the place
my favorite passage from the Aeneid (at least it was back when) with the rainbow snakes coming out of the ocean. uh, they might not be rainbow, but there's more to ancient color than first blush , and there is some basis for claiming 'varigated' or 'uncertain-saturated' color here.
..the frothing ocean...