When the sons of Israel descended to Egypt, they were just seventy souls. It means that it was the whole Partzuf, but in a state of smallness (VAK): Hesed, Gevura, Tifferet, Netzah, Hod, Yesod, and Malchut, and seven times ten equals seventy people.
The Partzuf lacked the “head,” meaning the huge desire of Pharaoh that was acquired in Egypt, and therefore, after exiting Egypt, they were able to assemble themselves into a complete soul. Pharaoh added desire to them by making them work very hard. They began to think about their purpose, what to do with themselves and how to connect above the growing egoism. Serious squabbles and quarrels began between them in Egypt. Pharaoh was constantly between them. The egoistic force grew, pushing them away from each other. Thus, a hopeless state was created, and they were forced to move closer to each other.
While trying to connect, they eventually understood that in Egypt they wouldn’t be able to get close to each other and get out of their egoism. Therefore, they had to rise above Pharaoh, that is, to escape from Egypt.
Question: Did the sons of Israel increase quantitatively and become numerous precisely because the egoism grew?
Answer: The Torah never refers to a quantitative addition, but only to the quality of the Partzuf: a small soul at first, then a little bigger, and then even bigger. It doesn’t depend on the quantity of the elements, but on the power of egoism that was collected in it. This is called that the Partzuf now has a head.
Question: The head that is added to VAK is the appearance of Moses?
Answer: Yes, slowly the need for him develops in the people of Israel. There is nothing artificial here. They grow gradually until Moses appears among them. And he appears suddenly, when there is no special need for him.
He emerges between two lines, right and left, between Pharaoh and the Creator, as someone able to lead all the other desires.
From Kab TV “Secrets of the Eternal Book” 6/1/16