It is the Day of Atonement in the Jewish community, a day of fasting, prayer and repentance.
In addition to fasting, I learned several years ago that Jewish congregations revisit the book of Jonah on Yom Kippur.
The story of the reluctant prophet Jonah and his unsuccessful attempt to flee from God and God’s assignment is meaningful, bringing up themes of hope, repentence, forgiveness and responsibility.
Yom Kippur is a time to ask God’s foregiveness and to ask the forgiveness of those one has wronged. It is also a time to forgive others.