SUKKOT is known in English as the Festival of Tabernacles (Leviticus 23: 34-36.) 
The Hebrew Bible calls it as “Chag HaSukkot” = “Festival of The Booths.” This Festival is concluded by the 8th Day known in Hebrew as Shimeni Atseret. God commanded to build up booths, temporary dwellings and dwell in them during this period to remind us of our humble beginnings in the wilderness.  Leviticus 23:42-43 'You shall dwell in booths for seven days.' (Nehemiah. 8:17). 
Prophetically it is celebrated in the anticipation of when the King Messiah will come again and establish His Kingdom from Jerusalem, all Israel, and to the whole world.  All nations will come to worship Him and celebrate Sukkot as it is written in Zechariah 14:16-21 (16). '...who is left of all the nations which came against Jerusalem shall go up from year to year to worship the King, the Lord of hosts, and to keep the Festival of Tabernacles...' 
This is the Honeymoon week of the Bridegroom and the Bride followed by the New Beginning of the 8th Day; Shimeni Atseret where it says in: 
Revelation 21:3 And I heard a loud voice from heaven saying, “Behold, the tabernacle of God is with men, and He will dwell with them, and they shall be His people. God Himself will be with them and be their God