A Jewish Rabbi is seen throwing papers to the fire. During the Biur Chametz, religious Jews fulfill their obligation to inspect their homes for any leaven and eliminate it before the night of Passover. In ultra-Orthodox cities in Israel, fires are set up in major locations in the city for this purpose, where people bring their bread leftovers to burn the leaven. During the seven days of Passover, they are prohibited from eating or possessing any leaven, symbolizing the dough the Israelites did not have time to allow to rise before the Exodus from Egypt. Biur Chametz, also known as 'the burning of the leavened goods,' is a Jewish ceremonial ritual involving the burning of leavened foods (chamets) to mark the start of Passover. (Photo by Sharon Eilon / SOPA Images/Sipa USA)