Yom Kippur Activity is an important part of the Jewish faith, and it involves atoning for one's sins. The term 'atoning' is used to describe the act of making amends for wrongs done, and it is typically done on Yom Kippur, which is the holiest day of the year in Judaism. During this day, Jews will fast, pray, and ask for forgiveness from God. Atoning is an essential part of this process, and it is often done through acts of charity or repentance.