Dante, Convito , II 4, speaking of the motion of the Primum Mobile, or Crystalline Heaven, which moves all the others, says:⁠—

“From the fervent longing which each part of that ninth heaven has to be conjoined with that Divinest Heaven, the Heaven of Rest, which is next to it, it revolves therein with so great desire, that its velocity is almost incomprehensible.”

“From the fervent longing which each part of that ninth heaven has to be conjoined with that Divinest Heaven, the Heaven of Rest, which is next to it, it revolves therein with so great desire, that its velocity is almost incomprehensible.”

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