Baal HaSulam, Introduction to The Book of Zohar, Item 66: Bear in mind that in everything there is internality and externality. In the world in general, Israel, the descendants of Abraham, Isaac and Jacob, are considered the internality of the world.
“Israel” are those who have an inclination for the three lines, for bestowal. These three lines symbolize Abraham, Isaac, and Jacob—and Israel aspire to integrate them so that the force of bestowal and the force of receiving will connect and reach adhesion with the Creator in the middle line.
After all, there are only these two forces in reality—the force of receiving and the force of bestowal. The first refers to the created being and the second to the Creator.
If the force of bestowal is also in the created being, a spark or a point in the desire to receive, then by that the created being can build the middle line. The desire is the left line, and the point in the desire, the spark from the Masach (screen) before the shattering, is the right line, and the Light that was summoned to operate on welding them provides the middle line, above reason, bestowal above receiving.
So we need the desire and the point in it (●) and also the tension (∆) between them, due to which a person feels bad. Then his point receives an urge to become acquainted with the Creator. And in this case, all of his desires become a means that helps the point in the heart reach the Creator.
That is why the Light initially, by descending, created a desire as powerful as itself. Now when the created being uses this desire, he can reach the Creator and rise to Him.
“Abraham” is the point of bestowal, and when a person uses it correctly and looks at the desire from it, he is called “Isaac.” And then there is the combination of them, “Jacob,” the middle line. We need these three components.
Question: If the Light and the desire have the same power, where does the difference (∆) between them come from?
Answer: The spark of Light, or the Creator, enters the desire and evokes in it a feeling of another nature, of another essence.
Then a person feels bad because of his dissimilarity with this nature in the use of his desire.
The truth is that none of us knows what the desire to receive is, but everyone knows its benefits. So we are not speaking about the desire but about the intention of in order to receive; we live in the egoistic intention and not in the desire, and it is not felt in itself.
Our whole perception, our whole program, is based only on our intention, on our self-centeredness. The difference is not between two desires, the desire to receive and the desire to bestow, but between two basic characteristics.
I compare them not according to size but according to a qualitative difference. In fact, I feel the difference, the gap between the Creator and the created being. This is what pushes me to start the path to the level of the Creator, to an equivalence of form with Him. Otherwise I wouldn’t receive such an urge.
Then I climb up the levels of resemblance, the levels through which a person brings himself to an equivalence of form with the Creator.
There are people in whom there are three lines and others not. In fact, they exist in everyone since eventually everyone has to reach the same state. The shattering was total, the incorporation was total, and the correction also has to be total.
Still, the three lines are not expressed in everyone at the same time. In the general desire there is an upper part—GE, or in other words those in whom the point in the heart (•) has already risen and been revealed, and there is a lower part, AHP, those in whom it is still concealed below. Accordingly, those above are drawn to unity (Yechud), to the Creator, and so they are called “Jews” (Yehudi). Below, people have a huge amount of desires, each one seemingly living in his own world—and so they are called “the nations of the world.” Above, everyone wants to connect to one point by which to reach the Creator and below, this point has not been revealed yet and still means nothing, and so the different desires draw people in different directions.
Still, the people who have received the basis for the three lines from Above have to feel that they are responsible for the correction of the world.
From the 1st part of the Daily Kabbalah Lesson 1/29/13, “A Speech for the Completion of The Zohar“