Yurodivy

Foolishness for Christ refers to behavior such as giving up all one's worldly possessions upon joining a monastic order, or to deliberate flouting of society's conventions to serve a religious purpose – particularly of Christianity. Such individuals were known as both "holy fools" and "blessed fools". The term "blessed" connotes both feeblemindedness and innocence in the eyes of God.

The term fools for Christ derives from the writings of Saint Paul. Desert Fathers and other saints acted the part of Holy Fools, as have the yurodivy (or iurodstvo) of Eastern Orthodox asceticism. Fools for Christ often employ shocking, unconventional behavior to challenge accepted norms, deliver prophecies or to mask their piety.

Parallels for this type of behavior exist in non-Christian traditions as well. The Avadhuta (Sanskrit), for example, the Islamic tradition of Qalandariyya and Malamatiyya Sufism and other crazy-wise mystics display similar traits. Mullah Nasruddin, of the Sufis, is also an example.

Certain prophets of the Old Testament who exhibited signs of strange behaviour are considered by some scholars to be predecessors of "Fools for Christ". The prophet Isaiah walked naked and barefoot for about three years, predicting a forthcoming captivity in Egypt ; the prophet Ezekiel lay before a stone, which symbolized beleaguered Jerusalem, and though God instructed him to eat bread baked on human waste, ultimately he asked to use cow dung instead ; Hosea married a harlot to symbolize the infidelity of Israel before God .

By the opinion of certain scholars, these prophets were not counted as fools by their contemporaries, as they just carried out separate actions to attract people's attention and to awake their repentance.

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