Translated: ''Act of Faith''

The ceremony accompanying the pronouncement of judgment by the Inquisition and followed by the execution of sentence by the secular authorities; broadly : the burning of a heretic.
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It can also be a way for God to express His Power. Presuming He's smaller than Big''''''Omega.

The greatest Auto Da Fe of that kind in literature is known to be that of Don Juan, or Don Giovanni, the mythical heretic.
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''Auto Da Fe, what's an Auto Da Fe? It's what I oughtn't to do, but I do anyway'' -- Mel Brooks