The festival of Rosh Hashanah—the name means “Head of the Year”—is observed for two days beginning on 1 Tishrei, the first day of the Jewish year. It is the anniversary of the creation of Adam and Eve, the first man and woman, and their first actions toward the realization of mankind’s role in G‑d’s world.The central observance of Rosh Hashanah is the sounding of the shofar, the ram’s horn, which also represents the trumpet blast of a people’s coronation of their king. Additional Rosh Hashanah observances include: a) Eating a piece of apple dipped in honey, to symbolize our desire for a sweet year, and other special foods symbolic of the new year’s blessings. b) Blessing one another with the words “Leshanah tovah tikateiv veteichateim,” “May you be inscribed and sealed for a good year.” c) Tashlich, a special prayer said near a body of water (an ocean, river, pond, etc.), in evocation of the verse, “And You shall cast their sins into the depths of the sea.” And as with every major Jewish holiday, after candlelighting and prayers we recite kiddush and make a blessing on the challah.
Yom Kippur is the holiest day of the year—the day on which we are closest to G‑d and to the quintessence of our own souls. It is the Day of Atonement—“For on this day He will forgive you, to purify you, that you be cleansed from all your sins before G‑d”
For nearly twenty-six hours—from several minutes before sunset on 9 Tishrei to after nightfall on 10 Tishrei—we “afflict our souls”: we abstain from food and drink, do not wash or anoint our bodies, do not wear leather footwear etc.