My friend Siobhan posted a lovely interperetation of the Incubation chamber series on my livejournal:
I think the order in which you posted them is the "appropriate" color progression. The fractal itself makes me think of traveling down some biological pathway. To me, the order of the colors symbolizes the road to enlightment, from dark to light, ignorance to wisdom. It's similar to Plato's Allegory of the Cave - the prisoner chained to the wall makes a series of realizations that lead him to the full glory of the sun. Socrates via Plato talked a lot about different levels of knowledge. The blue in the final fractal can loop into the dark bl