'Faya Dayi' Review: Stylish Documentary Immerses Us in the Khat Leaf's Intoxicating Aura 'Faya Dayi' Review: Stylish Documentary Immerses Us in the Khat Leaf's Intoxicating Aura Jessica Beshir's debut feature eschews anthropological detail for enveloping clouds of atmosphere in this study of Ethopia's top cash crop. Guy Lodge, provided by FacebookTwitterEmail Courtesy of Feyatey Khat is Ethiopia’s biggest cash crop, making serious business from a spiritual high: When chewed, the leaves of the flowering green plant act as a stimulant, believed in certain corners of Sufism to aid prayer and ...