In Paleolithic caves paint was blown through fingers that leaped from verdant minds... to unknown signs, in midst of "a coherent discourse, nearly a 'grammar.'" O Muse,                     return to my mind those death-like realms!

paint: red: and yellow iron oxide; black: charcoal or manganese dioxide.
a coherent discourse: Y. Taborin. Interview in La Croix, 12/20/1996.