This last day of Sukkot is known as the last of the "Days of Judgment", which began on the Feast of Trumpets/Rosh Hashanah/Yom
From Feast of Trumpets/ Rosh Hashanah to Hoshanah Rabbah, there is an additional 21 days given for repentance.
God's mercy and the grace for us to repent is given up until the very last hour, of this very last day of Tabernacles/Sukkot.
Perhaps it is God's love and patience towards us that the Rapture did not occur on the Feast of Trumpets/Rosh Hashanah, as many had perceived it would:
"The Lord is not slack concerning his promise, as some men count slackness; but is longsuffering to us-ward, not willing that any should perish, but that all should come to repentance." 2 Peter 3:9
Hoshanah Rabbah, the last day of Sukkot/ Feast of Tabernacles is the last Scripturally appointed day of dwelling in temporary shelters. Hence, it is called The Feast of Tabernacles.
Could this also indicate the time of transitioning from dwelling in temporary earthly bodies, into new glorified, eternal ones?
"For indeed in this house we groan, longing to be clothed with our dwelling from heaven.." Corinthians 5:2
For astounding details regarding these possibilities, please see the following:
May ALL realize that it is NOW time to release our affections on this fleeting world, transferring them instead to God and His eternal Kingdom!