Question: Why is it written in Part 8, Item 29 of Talmud Eser Sefirot that the lower one corrects the upper one? What does this mean?
Answer: The lower one (the world of Atzilut) corrects the upper one (the world of Nekudim). That’s because the world of Nekudim broke instead of attaining the full correction
It is necessary to reveal the evil inclination, the ego, as it is written, “I created the evil inclination and I created the Torah for its correction.” But the evil was not revealed in the world of Nekudim, and therefore it becomes revealed during the breaking. It then becomes possible to build the world of Atzilut, “the Torah for its correction.”
The entire world of Atzilut and its entire apparatus is Atik. Arich Anpin, Aba ve Ima, and Zeir Anpin in relation to Nukva of the world of Atzilut is called the system of “Torah” that brings the Light that returns the souls ascending into Malchut to the source of goodness. Therefore, after the breaking of the world of Nekudim, the lower one corrects the upper one.
Likewise, in our souls, which are fragments from the breaking of the common soul of Adam HaRishon, we also correct the body of the broken Adam. We are the surviving parts of this system and we have to correct it. Adam HaRishon, the upper one in relation to us, broke, and we, the lower ones, correct him.
The same thing happens in our world. The next generation has to correct the mistakes made by the previous generation. The children correct what the parents did, first with the help of the parents, and later ascending above them and taking everything that the parents left behind uncorrected in order to continue the correction. In other words, the children correct the parents, meaning they correct what the parents revealed.
The same thing happens in the world of Atzilut: On one hand the lower one corrects the upper one, but on the other hand the Upper One provides the instruments for correcting Himself.
From the 2nd part of the Daily Kabbalah Lesson 12/21/10, Talmud Eser Sefirot