Rosh Hashanah, Slichot, and Yom Kippur are stages of the correction of the soul. The holidays we celebrate in this world symbolize the actions we need to perform within ourselves that relate to every person on the path of his or her correction.
Anyone who feels the need to correct himself in order to get closer to the Creator, unite, and adhere to Him, tries to perform these actions.
On Yom Kippur, we learn how to distance ourselves from our egoism, from the will to receive for our own sake. Yom Kippur symbolizes restriction: when we do not use anything from our will to receive, which is indicated by the five prohibitions customary on this day: do not drink, eat, wash yourself, and so on.
After restricting this egoistic use of desire, we move on to the next stage and learn to bestow for the sake of bestowal. To do this, we need to make a cover for this desire. The process of correcting the desire, which allows it to perform actions of bestowal, is called Sukkot.
On Yom Kippur, we decided not to use this desire and we did not eat or drink—everything was just “do not do.” Now we are learning how to turn this will to receive into a tool that allows us to start bestowing, performing the action of Bina, of faith. Sukkah, the thatch, Schach, the covering, symbolizes this correction. We want to cover our egoism, our will to receive, because we have already decided that we cannot enter spirituality with it the way it is.
On the other hand, we have nothing but this desire: egoism is everything I am. In what form can the will to receive be used so that the action would be like bestowal? To do this, we need the qualities of Bina, faith.
The Sukkah is the connection between us, the soul we assemble that reaches mutual bestowal and is filled with the light of Hassadim under the shadow of faith. The shadow comes from the cover built over us, a screen, that shows that we do not want to receive anything from the Creator, but we want to be like Him.
On Rosh Hashanah, we decided to follow the path of correction, and on Yom Kippur, we made a restriction. Now we are beginning to build the Kli of Bina, bestowal for the sake of bestowal. And then we will come to a complete Kli that can receive in order to bestow.
We want to reveal the Creator who fills all of reality, to feel Him, to understand Him, and forever to connect with the upper force that controls the entire universe. All of humanity must reach this goal, and then this corporeal world will disappear. All our physical sensations will melt away, and we will rise to the spiritual level, to the true reality where we will exist eternally.
Building a Sukkah is the first stage of the correction of the soul. Ten egoistic desires connect together in mutual bestowal and build a common altruistic force between them so that the Creator can shine the light of Hassadim upon them through their connection. This means that they are in Sukkah.
Then they add more and more to the desire for the sake of bestowal, go out of the Sukkah, and come to receive the light of the sun, that is, the light of Hochma for the sake of bestowal. However, the first stage is reaching the Kli of Bina, faith, bestowal in order to bestow between all the friends and from them to the Creator. This is what the Sukkot holiday is dedicated to.
From the Daily Kabbalah Lesson 9/30/20, “Sukkot“