In Farid al-Din Attar's Asrar Nameh, the allegory of the madman and the donkey's head serves as a sharp critique of ignorant superstitions and irrational beliefs. The poem describes a 'wise fool' (a common archetype in Sufi literature) who observes a donkey's skull placed on a stick in a melon patch, a traditional practice meant to ward off the 'evil eye'. The madman mocks this custom by pointing out a logical absurdity: if the living donkey was utterly defenseless and unable to protect its own body from being beaten with a stick, how could its dead, dry bones possibly possess the metaphysical power to protect a field from the evil eye? Through this humorous and biting anecdote, Attar emphasizes the folly of relying on empty, material charms rather than seeking genuine spiritual understanding and relying on God.