This festival begins on the fifth day after Yom Kippur and is one of the most joyous holidays.
This festival begins on the fifth day after Yom Kippur and is one of the most joyous holidays. Sukkot helps commemorate the period in which the children of Israel were wandering in the desert. People live and eat in temporary dwellings during the festival.
http://www.jewfaq.org/holiday5.htm