Baal HaSulam, “The Arvut (Mutual Guarantee),” (abridged version): The role of the people of Israel is to prepare the world to a particular purification so that it could accept the principle of love towards the fellow man, similar to Israel. Everyone makes a contribution to this, and thus, each of the people of Israel brings the whole world to good.
The correction of Malchut of Infinity occurs in stages. Some of its parts are more “transparent” and others more “coarse,” as there are more and less important organs in the body. This difference is characteristic of the period of corruption, while after correction more corrupted parts may reach a greater height.
Now, we do not see the real situation. For example, the nations of the world are the most “coarse” vessels; however, after being corrected last, they will rise above the rest. And vice versa, the vessels that are starting correction today are simply purer, and that is why they wake up first. On the other hand, they are “coarser” than previous generations.
Thus, the process goes in stages. Baal HaSulam writes at the end of “Introduction to The Book of Zohar” that corrections are carried out from light to heavy, and they are started by those who came to this need, in other words, by Israel, which means “straight to the Creator” (Yashar-El).
If in the general desire there is an impulse to move forward, the point in the heart (•) that feels this calling, then this layer of desires is called “Israel.” The next layer feels pains in life and suffers from the lack of the meaning of life (?), but it still does not feel enough aspiration to reveal the purpose of creation. Finally, there is a layer that simply suffers, albeit perhaps not a lot, and that can be satisfied with little.
In essence, it all depends on the upper layer: If it corrects itself, the Light comes from it to others because AHP can be corrected only by connecting with the carriers of the upper force, with those who have the vessels of bestowal.
From the 4th part of the Daily Kabbalah Lesson 11/17/2011, “The Arvut (Mutual Guarantee)”