September 25th, 2023 is Yom Kippur, which is the holiest day of the year in Judaism and the "Day of Atonement". It is the culmination of the 10-day period of repentance and reflection known as the "High Holidays," which begins with Rosh Hashanah. On Yom Kippur, Jewish people reflect on their sins and ask for forgiveness from God and those they have wronged. They also believe that God will decide if they will live or die in the year ahead. The holiday is typically observed with fasting, prayer, and refraining from work prohibited on Shabbat.