The Ari says that the Sukkah is like a hug from Hashem

On Rosh Hashana and Yom Kippur we do Teshuvah from Yirah (fear) but on Sukkas we do Teshuvah from Ahavah.  This means that all of our sins become considered as virtues.  The root of most of our sins comes from lack of Emunah.

The Ari says that the Sukkah is like a hug from Hashem which brings us to Teshuva from Ahava

from the Shiur on Naaleh:
Cycle of Teshuva

Teacher: Mrs. Shira Smiles Class: Sukkot: Time of Our Joy