How is Yom Kippur Observed? (quoted)

 September 25–26, 2012

How is Yom Kippur Observed?

An Overview of Yom Kippur's Traditions and Customs

Yom Kippur commemorates the day that G‑d forgave the Jewish people for the sin of the Golden Calf. Forty days after hearing G‑d say at Mount Sinai: "You shall not have the gods of others in My presence; you shall not make for yourself a graven image," the Jews committed the cardinal sin of idolatry. Moses spent nearly three months on top of the mountain pleading with G‑d for forgiveness, and on the tenth of Tishrei it was finally granted: "I have pardoned, as you have requested."
From that moment on, this date, henceforth known as the Day of Atonement, is annually observed as a commemoration of our special relationship with G‑d, a relationship that is strong enough to survive any rocky bumps it might encounter. This is a day when we connect with the very essence of our being, which remains faithful to G‑d regardless of our outward behavior.
And while it is the most solemn day of the year, we are also joyful, confident that G‑d will forgive our sins and seal our verdict for a year of life, health, and happiness.
For nearly twenty-six hours – from several minutes before sunset on Tishrei 9 until after nightfall on Tishrei 10 – we "afflict our souls": we abstain from food and drink, do not wash or anoint our bodies, do not wear leather footwear, and abstain from spousal intimacy. We are likened to the angels, who have no physical needs. Instead of focusing on the physical, we spend much of our day in the synagogue, engaged in repentance and prayer.

Preparations

On the day before Yom Kippur, the primary mitzvah is to eat and drink in abundance. Two festive meals are eaten, one earlier in the day, and one just prior to the onset of Yom Kippur. Some of the day's other observances include requesting and receiving honey cake, in acknowledgement that we are all recipients in G‑d's world and in prayerful hope for a sweet year; begging forgiveness from anyone whom we may have wronged during the past year; giving extra charity; and the ceremonial blessing of the children.
Before sunset, women and girls light holiday candles, and everyone makes their way to the synagogue for the Kol Nidrei services.

On Yom Kippur

In the course of Yom Kippur we will hold five prayer services: 1) Maariv, with its solemn Kol Nidrei service, on the eve of Yom Kippur; 2) Shacharit—the morning prayer; 3) Musaf, which includes a detailed account of the Yom Kippur Temple service; 4) Minchah, which includes the reading of the Book of Jonah.
Finally, in the waning hours of the day, we reach the climax of the day: the fifth prayer, the Neilah ("locking") prayer. The gates of Heaven, which were open all day, will now be closed—with us on the inside. During this prayer we have the ability to access the most essential level of our soul. The Holy Ark remains open throughout. The closing Neilah service climaxes in the resounding cries of "Hear O Israel... G‑d is one." Then joy erupts in song and dance (a Chabad custom is to sing the lively "Napoleon's March"), followed by a single blast of the shofar, and the proclamation, "Next year in Jerusalem."
After the fast we partake of a festive after-fast meal, making the evening after Yom Kippur a Yom Tov (festival) in its own right. We immediately begin to look forward to the next holiday and its special mitzvah: the construction of the sukkah.

(For more information, visit:  http://www.chabad.org/holidays/JewishNewYear/template_cdo/aid/995354/jewish/How-is-Yom-Kippur-Observed.htm)