The holiday of Rosh Hashanah is mentioned in the Torah, inside the book of Leviticus as Yom Teruah, which can be translated as the Feast of Trumpets, or the Day of the Sounding of the Shofar, a religious musical instrument which is blown like a trumpet.
The first night of Rosh Hashanah, after the Ma'ariv service, it is customary to wish one another: L'shanah tovah tikatev ve'techatem l'alter l'chayim tovim: May you be inscribed and sealed for a good year, for good life immediately.
Another custom is to avoid eating nuts. Some claim the tradition is based on the fact that the gematria - numerical value of the Hebrew letters - of egoz meaning nut is equivalent to that of chet meaning sin.
The second night of Rosh Hashanah, folks eat a new fruit a fruit that has recently come into season. It is to celebrate the Earth's produce.
Yom Kippur is the Day of Atonement. It completes the annual period known in Judaism as the High Holy Days that commences with Rosh Hashanah.
Jewish people traditionally observe the day with a 25-hour period of fasting and intensive prayer, often spending most of the day in synagogue services.
This year, Yom Kippur will take place on 3 October, and the purpose of Yom Kippur is to bring about reconciliation between people and between individuals and God. Here is a unique video clip to make you happy and involved a the celebration.