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, and the seventy nations are considered the externality of the world. Also, there is internality within Israel themselves, which are the wholehearted workers of the Creator, and there is externality—those who do not devote themselves to the work of the Creator.
Abraham is the right line of the spiritual development and Isaac is the left line. They reach a state of the middle line, Jacob, and then they even reach a level of greatness called Israel. At the end, they are already arranged in the direction of Yashar-El (straight to the Creator). All the desires that are not arranged according to the three lines, in smallness and in greatness (Jacob and Israel) are called the nations of the world. This is the total desire that was created and this is how it is divided into two parts.
Later every level is divided into two parts: Galgalta ve Eynaim and AHP. Accordingly the upper internal part is called Israel and the lower external part is called the nations of the world. Thus, there is a certain ratio between them.
Israel receive the awakening, the urge that leads straight to the Creator, while the nations of the world don’t receive the urge to reveal the Creator and to be incorporated in Him and adhere to Him yet.
“Also, there is internality in every person from Israel—the Israel within, which is the point in the heart, and externality, which is the inner ‘nations of the world,’ the body itself. But even the inner nations of the world in that person are considered proselytes, since by cleaving to the internality, they become like proselytes from among the ‘nations of the world,’ that came and cleaved to the whole of Israel.”
AHP and Galgalta ve Eynaim are in the same ten Sefirot, but lower desires cannot work with the intention of in order to bestow and to be called Israel yet. They are under a restriction, but they are not the nations of the world anymore, which means that they don’t yearn for different things, they want to enjoy in different ways anymore. No, they prefer to be under a restriction and are therefore called foreigners. This is the term for the average between the nations of the world and Israel.
The desires of the phase of Israel are aimed straight at the Creator. They are already restricted and have a Masach (screen) and the Returning Light (Ohr Hozer), and they work with the intention of in order to bestow. On the other hand, the desires of the phase of the nations of the world are a vessel (Kli) that are not corrected yet, and that still have an Aviut (thickness), that have not been restricted and has no Masach or the Returning Light. There are desires that are in the middle “proselytes,” which are already restricted but cannot bestow yet.
These three types of vessels can be in the same person: sometimes the vessel in which you want to bestow is revealed in you; sometimes you cannot bestow but you don’t want to receive, and sometimes you don’t care about bestowal and you only want to receive.
These vessels are not revealed all at the same time. Suppose you want to eat and sleep, what do you prefer? To eat and then to sleep? It turns out that one comes before the other and there cannot be two desires at the same time, although they may both be in the right direction. There is always one whole desire.
This means that everything in the world and this whole world is divided into two parts: into internality and externality. This system includes all of humanity and is divided into smaller and smaller elements, which are of the exact same composition, as all the parts are always in the same ratio according to the same principle. The phase of Israel in a person is connected to the light of Infinity and is therefore important.
From the 3rd part of the Daily Kabbalah Lesson 2/28/14, Writings of Baal HaSulam