Sukkot is the only festival that does not celebrate some event in our history. It is only a harvest festival. Even the waving of the Four Kinds has no relation to anything that we can identify.
The readings are basically an overview of the annual Callings of Holiness. That is a lovely reminder, and something that we could relate to in this day and time.
It starts off requiring when an domestic animal is born, it must remain in its mother’s care for 7 days, nor may you kill one of these animals on the same day that you slaughter its offspring. Any thanksgiving offering must be eaten on the same day that you slaughter it.
You must guard the commandments, and not descrate G-d’s holy Name for I am G-d, who took you out of Egypt.
G-d then commands us again regarding the Sabbath, as well as the Holy occasions appointed by G-d. Starting with Passover, and the Counting of the Omer, with its waving.
Could it be that in this case, for instance, the requirement for 7 lambs to be sacrificed, might not mean for each person (or family) to sacrifice 7 lambs, but for 7 lambs to be sacrficed in the Name of G-d.
Then He reminds us to leave the gleanings for the poor. Then he includes Rosh Hashana and Yom Kippur and finally Sukkot. In this he includes the four-kinds and the various sacrifices that are to be made.
“Every native must live in huts, in order that your generations know that I had the Israelites live in huts when I took them out of Egypt.”
Note: This reminds us of the conditions we lived in while in the Sinai. Firstly, what would oppressed labourers have lived in in Egypt, if not huts? Secondly, this happened 3000 or so years ago. For 2000 we have not been living in the desert. What sense does it make for us today?