Holly Jolly Hi Lo Plaid Holiday Dress Mia Belle Girls Why do Jewish people wear costumes on the Jewish holiday of purim?, On Purim, we wear costumes to symbolize how the holiday's miracles were hidden within natural events. Just as Gd's intervention was Orthodox Jewish girls are seen wearing fancy dresses during the festival of Purim on the streets of Stamford Hill in north London. Purim is one of the most entertaining Jewish holidays. It How to Style Black for the Holidays LivingLesh Mideast in Pictures: Jews celebrate Purim in Israel Xinhua