We undergo four exiles, one after the other. They root in the four phases of the collective soul, HaVaYaH (Yod, Key, Vav, Key). Long before, in the World of Infinity, the common will to receive was created in four phases. Hence, all evolution and correction occurs in the same four phases.
Until we reach the final stage, Malchut, we must undergo the alterating expansion and disappearance of the Light from the desire, between the degrees, which repeats four times. When the Light enters, it is redemption (from its absence or darkness), and when it departs, it is exile (disappearance of the Light).
The presence of the Light in the vessel is regarded as the presence of the Creator in the creature or revelation of the Creator. Therefore, redemption (clothing of the Light in the vessel or soul or desire) is always followed by exile of the Light, its departure. There is no growth without this, as it is written, “Getting filled with the Light and becoming empty makes the desire suitable for achieving the goal (equivalence to the Creator).”
This is why even the first Kabbalists knew what humanity was going to experience. Abraham used to ask the Creator, “How can I know that my descendants will inherit this land?” When he received the answer that they would go into exile, Abraham felt contented for he knew that after four exiles and four redemptions, everybody would come to the final correction.
We are now at the threshhold of exiting the last exile, in the system of the fourth level which contains all the previous exiles and redemptions. We only have to perform the final, complete redemption (of the entire Malchut) which is very near.
However, to reach redemption, we must experience exile. Long before exile comes, we need to contain within, in the negative form, the complete form of this future redemption, the form of the corrected world, meaning that we must expect that it will come not only to Israel, but to all humanity.
For the first time in human history, Israel (our world group) acts as a conduit for the Upper Light, and we must unify for the sake of the correction of the world. Redemption means being in full adhesion with the Creator, the property of bestowal.
From the 4th part of the Daily Kabbalah Lesson 10/1/10, “This is for Judah”