Another name for Rosh HaShanah is Yom HaDin, the Day of Judgment. It was seen that on this day, G-d would sit in court and all men would pass before Him to be judged. Three great books will be opened as each man is weighed in the balance and placed into one of three categories (Talmud, Rosh HaShanah 6b). It has been taught that the school of Shammai says that there will be three classes on the final Day of Judgment, one of the wholly righteous, one of the wholly wicked, and one of the intermediates. The wholly righteous are at once inscribed and sealed for life in the world to come; the wholly wicked are at once inscribed and sealed for perdition (Talmud, Rosh HaShanah 16b-17a). Yom HaDin: The Day of Judgment
The righteous are separated and will be with G-d. This is known to Bible believers as the rapture, which in Hebrew, is the natzal. The wicked will face the wrath of G-d during the tribulation period (Yamim Nora'im), known in Hebrew as the Chevlai shel Mashiach, and will never repent. The average person has until Yom Kippur till his fate is sealed forever. In other words, the average person will have until the end of the seven-year tribulation to repent and turn to G-d. The average person on Rosh HaShanah is judged by G-d and is neither written in the book of life or the book of the wicked. His fate is yet to be decided. The average person and the wicked have to go through the "Awesome Days," the tribulation, until they reach Yom Kippur (the end of the tribulation when their fate is sealed forever). Once you are written in the book of the wicked, you can never get out of it (Revelation 17:8). These are people who never, ever, will accept the Messiah Yeshua.
There are 12 months in the year and there are 12 tribes in Israel. Every month of the Jewish year has its representative tribe. The month of Tishrei is the month of the tribe of Dan. This is of symbolic significance, for when Dan was born to Bilhah, Rachel's maid, Rachel said, "God hath judged me [dannani], and hath also heard my voice..." (Genesis [Bereishit] 30:6). Dan and din (as in Yom HaDin, Day of Judgment) are both derived from the same root, symbolizing that Tishrei is the time of Divine judgment and forgiveness. Similarly, every month of the Jewish calendar has its sign of the Zodiac (in Hebrew, Mazal). The sign of the Zodiac for Tishrei is Scales. This is symbolic of the Day of Judgment.