(2) The second thing that we have to know derives from the first. This is that the degree of the actual Tzimtzum itself is what made the Place the way it is. What this means is that, even following the pathway of limitation, the world could have been made differently. For the All-Powerful certainly includes everything, and thus a variety of different possible kinds of places could have been brought into existence for the lower realms, all included in the All-Powerful.
If so, only that which the All-Powerful wanted to leave from among all the different hypothetical possibilities actually remained as the Place made for the lower realms and beings. And how was it that this remained? That which He did not want to exist departed, including all these possible places that He did not actualize. If so, we may say that the Place that remained was determined by the measure of that which He removed.
Had He removed more, the place would have been less than it is, yet the worlds would still have existed. Had He removed less, the worlds would have been greater, but they would still have existed. If so, it is the degree of the Tzimtzum that makes things go they way they go now.