What is Yom Kippur and why do we celebrate it?

Yom Kippur, or the day of atonement is God's sixth festival on Tishrilo. It's the last day of the High Holy days, and the last day of Teshaua, a forty-day period when people repent for sin. Classic literature teaches that satan cannot touch people on this day. People humanly seek Good, fast, pray for forgiveness, and expect him to hear. Yom Kippur, called yoma, or the day, is the holiest day of the year. The writer of Acts called it "The Fast" and was certain that readers knew what day this was. The Jewish people afflict their souls for 25 hours on Yom Kippur to fulfill. They fast food, water, perfume, lotions, bathing, washing hands, leather shoes, and marital relations. In Israel all restaurants, stores, offices, factories, and radio and television stations close. The country is quiet except for a few children riding their bicycles. From the synagogues come to the sounds of weeping. Afterwards, everyone strolls into the streets, dressed in white. Yom Kippur is the second fall feast, and the beginning of the year of Jubilee. It is a prophetically, "unfilled" feast. God will fulfill this awe-inspiring, festival, on a future Yom Kippur, when he judges sin and blows the Great Shofar, one of the three prophetic shofar blasts.