Kol Nidre: this Aramaic song, whose unforgettable melody ushers in the holiday of Yom Kippur, allows Jews to take back promises that could not be fulfilled or were made under force. It performs the psychological function of allowing Jews to clear their conscience of promises of a personal nature that could not be kept. In the historical sense, it was created in the Middle Ages to permit Jews who were forced to convert to Christianity to return to the faith of their ancestors.

Many Jews look forward to hearing the Kol Nidre ceremony each and every Yom Kippur.