Part 3: In their essence, however, the Sefirot are only an extended array of powers… As explained earlier, everything is one deep plan, a composite weave of just so many powers ordered in such a way that each holds sway only at its own designated time and in its own specific manner. This is called “an extended array of powers”. This array of powers “extends” and “spreads” in the sense that they are revealed in a variety of different ways according to specific, fixed rules.
They are …organized in their necessary order... This indicates that the order does not consist of scattered, separate, unrelated parts, but that a single, general, all-encompassing order underlies the revelation of each of the different powers, for everything was calculated in such a way as to lead to the ultimate goal.