| "The tenth of the seventh month shall be the Day of Atonement for you. It is a holy holiday when you must fast and bring a fire offering to HaShem. Do not do any work on this day; it is a day of atonement, when you gain atonement before HaShem your God." |
| VaYikra 23:27-28 |
The Torah instructs us to fast on the tenth day of the month of Tishrei and to refrain from work on that day like on Shabbos. Yom Kippur is one of the holiest days of the year. It is a time for introspection, self-correction, prayer, and teshuva. Frivolous activities are inappropriate for this time.
Yom Kippur is one day long even outside of the land of Israel.
It is an ancient custom to perform Kaparos before Yom Kippur. Kaparos can be performed any time between Rosh HaShana and Yom Kippur but the preferred time is just after dawn on the day before Yom Kippur.
The Kaparos ritual involves taking a chicken (a rooster for a man and a hen for a woman) or money in your right hand and revolving it over your head while reciting a prayer. The prayer finishes with the following declaration:
"This is my exchange, this is my substitute, this is my atonement. This chicken will go to its death (or, if using money, "this money will go to charity") while I will enter and proceed to a good long life, and peace."
The chicken is then slaughtered and it (or it's cash value) is given to the poor.
This ritual is meant to symbolically express our recognition that we have sinned and are no longer deserving of life. By killing the chicken we are stating that, in truth, this should be our fate but that HaShem has given us the opportunity to return to Him through teshuva and Yom Kippur. (This is the same as the intent we are supposed to have when making a sacrifice for atonement in the Holy Temple in Jerusalem.)
It is important to realize that Kaparos is not a magical means of removing your sins. Only teshuva can do this. Kaparos is a way of inspiring and expressing teshuva.
There is a mitzvah to eat on the day before Yom Kippur. It is customary to have two festive meals, one at midday and one in the afternoon in preparation for the fast. You should be careful not to overeat and to bear in mind the importance of the coming day.
Teshuva can only help for sins between man and HaShem. If, however, you have wronged another person then teshuva cannot function until one has received forgiveness from that person. It is therefore customary to seek out the forgiveness of anyone whom you may have sinned against before Yom Kippur begins. It is also customary to recite the Tefila Zaka prayer in which you state that you forgive anyone who may have sinned against you in any way.
The Yom Kippur fast is the strictest of the entire year. The fast lasts for the entirety of the day, from sundown on the eve of Yom Kippur till nightfall the following night, over twenty four hours. The fast involves five prohibitions:
The day of Yom Kippur is devoted entirely to prayer. While concentration on one's prayers and their meaning is important throughout the year, on Yom Kippur it carries even more significance.
It is customary for men to wear a white tunic-like garment called a kittel during the prayers of Yom Kippur. The white kittel is reminiscent of the angels and symbolizes purity. Furthermore, the kittel resembles burial shrouds and thus reminds us that we will die someday and thus humbles us to do teshuva.
For these reasons, it is also customary to wear white garments on Yom Kippur.
© Eliezer C. Abrahamson
Yom Kippur Machzor - The Yom Kippur prayers with translation and commentary. Outstanding!
The Machzor Companion - The themes of the High Holy Days Machzor, for Rosh Hashana and Yom Kippur.
Rosh HaShanah/Yom Kippur Survival Kit - An entertaining and insightful introduction to the meaning of the Days of Awe.
Viduy - The full text of the Yom Kippur confession with translation and commentary.