Sukkot is the last of the Shalosh R'galim (three pilgrimage festivals). Like Passover and Shavu'ot, Sukkot has a dual significance: historical and agricultural. Historically, Sukkot commemorates the forty-year period during which the children of Israel were wandering in the desert, living in temporary shelters. Agriculturally, Sukkot is a harvest festival and is sometimes referred to as Chag Ha-Asif , the Festival of Ingathering.
The word "Sukkot" means "booths," and refers to the temporary dwellings that we are commanded to live in during this holiday in memory of the period of wandering. ˙