In his brilliant comic novel, The Metamorphoses (also known as The Golden Ass), Lucius Apuleius (ca. 124-ca. 170 CE) spies on a witch getting ready for her evening jaunt. She schmeers herself with ointment, turns into an owl, and flies off. Apuleius thinks this looks like fun, and tries the ointment himself.
He's transformed (you can't say he didn't deserve it) into a jackass. In this form he is bought by some galli, the itinerant priests of the Syrian Goddess who, whenever they're not taking up collections or screwing as many guys as they can manage to wrap their legs around, tour the countryside going into trances and giving fake oracles.
Eventually the galli get tired of having to come up with new oracles all the time, so they hit on a solution: the foolproof answer to all questions.
Yoke the oxen, plow the land:
tall the golden grain will stand.