I certainly can't speak for all cultures or all societies but it's clear that in America poetry serves a very marginal purpose. It's not part of the cultural mainstream.
How does one happen to write a poem: where does it come from? That is the question asked by the psychologists or the geneticists of poetry.
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I've often entertained paranoid suspicions about my fridge and what it's been doing to my poetry when I'm not looking but I never even considered that my fan was thinking about me.