It has thus been explained how the ascent of Malkhut to Bina brought about a connection between the levels, so that each level can ascend to the level above it. Furthermore, even the lowest degree can ascend to the loftiest level through this connection that has been achieved through the falling of Bina, Tiferet, and Malkhut from each level to the level below it (as explained in Sulam on Zohar, Vayak’hel 41, s.v. “vezeh amru”).
The Immature and Mature States of Yisrael Sabba and Tevuna and Ze’er Anpin and Nukba 21. After explaining the ascent of Malkhut to Bina in broad outlines, how it occurs in each and every level of the four worlds of Atzilut, Beria, Yetzira, and Asiya, these matters will now be explained in detail. Let us take, as an example, the two levels called Yisrael Sabba and Tevuna and Ze’er Anpin and Nukba that are in the world of Atzilut. Due to the ascent of the Malkhut of Yisrael Sabba and Tevuna to the Bina of Yisrael Sabba and Tevuna, in the state of immaturity, the three sefirot of Bina, Tiferet, and Malkhut of Yisrael Sabba and Tevuna left and fell to the level below Yisrael Sabba and Tevuna, which is Ze’er Anpin and Nukba, and these sefirot of Bina, Tiferet, and Malkhut became attached to the level of Ze’er Anpin and Nukba at the time of their fall. Therefore, when the time of maturity arrived, when the Malkhut reverted and left the Bina of Yisrael Sabba and Tevuna and came back to its place, so that Bina, Tiferet, and Malkhut of Yisrael Sabba and Tevuna returned from their fall and came back to the level of Yisrael Sabba and Tevuna, they also raised the level of Ze’er Anpin and Nukba along with them, since they were attached to it at the time when they were in the state of immaturity, when they fell. It thus follows that the level of Ze’er Anpin and Nukba also ascended and became one with the level of Yisrael Sabba and Tevuna, likewise receiving the same lights and brains that are fit for the level of Yisrael Sabba and Tevuna.