a "9" is an upside-down "J". both are spirals. fascinating, isn't it?
I'm looking at various emanations of "9" in relation to the Siena poems. "The Nine" was the name for the commune governors during one period (when Lorenzetti's murals were done). Siena has 9 gates.
I'm thinking of the nine circles in Nicholas of Cusa's "Game of Spheres", too.
"J", of course, is very important in Stubborn & other places.
I'm looking at the spirit/nature, divine/human, substance/image, nature/art dichotomies... in terms of number & geometry.
Duccio's (& many other medieval & renaissance painters') designs were based on ratios having to do with the square & its diagonal (an irrational number, the square root of 2).
N. of Cusa, I'm sure found this of interest. Creation/incarnation (or Cusa's "infinite", for that matter) can only be analyzed by means of "irrationality" or immeasurability.
does a J reflect 9, or vice versa?
Dante, somewhere in the Commedia, writes: "Beatrice is a 9". (Beatrice, of course, was a sort of avatar of/from that other "J")
Holy Roman Emp. Henry VII, Dante's messianic Arrigo, died near Siena on a Friday in 1313.
I gotta finish muh poem.