"Many physicians would roll their eyes and say, 'God, another crazy person with food sensitivities, ' " says Peter Green, director of the Celiac Disease Center at Columbia University and a co-author of the proposal.

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You see one single flower nodding on a cliff side far across the canyon, or a huge knot in a redwood tree looking like Zeus' face, or some of God's little crazy creations goofing around in creek pools (zigzag bugs), or a sign on a lonely fence saying 'M.

NPR: Zigzag Bugs And 'A Sea Like God': Kerouac's Big Sur

Others include God Loves Uganda, about American religious leaders and their East African counterparts, and Running From Crazy, in which the actress Mariel Hemingway - granddaughter of author Ernest - explores her family's history of mental illness.

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