ghazal: "in the umbral shadows"

Where is the border   between blue and green?
                                                        here in the umbral shadows
where is the ardor   between rue and spleen?
                                                        here in the umbral shadows
it's guru purnima in India
                                            moon mirror in sky   shines bright
where is the mortar   between true and keen?
                                                        here in the umbral shadows
the chirp of the bird is remedial?
                                                  the cough of the car concurs
where is the ember   between has and been?
                                                        here in the umbral shadows
the clashing of schools   if demonstrative
                                            suggests less sense than dolor
doling out tinder   to the evergreen
                                                        here in the umbral shadows
when Raphael's stymied   lend him my shawl
                                            direct him to watch the stream
where is the letter   between world and dream?
                                                        here in the umbral shadows


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[The 1st sentence of this poem's 1st line is borrowed from Ron Silliman's Sunset Debris (appearing in Parmentier, vol. 17, no. 2, June 2008)]

(next morning) ps: this started as a rubai (quatrain), then inched its way to being a ghazal.