Rosh hashana is the first holiday in the year. The meaning of Rosh Hashana is the end of year and start the new year. In Rosh Hashana pepole eat apple with honey to make the new year sweet as the honey.Another thing is a head of fish that represent a head and not to be tail.
In Yom kippur everyone fasting to pay their sin. Yom kippur is an holiday of forgiveness to each other.
We celebrate Succot to remember the days that the Jew sleept in Succot in the desert