...whereas previously – and this applies even now to those levels where the Tzimtzum does not reach – they could not be seen or grasped in any way. Because of its visibility, there is a difference between the light we have been talking about – the light of the contracted Sefirot – and all that existed prior to the Tzimtzum, as well as Eyn Sof even now, after the Tzimtzum.
Part 2: And this light that is permitted to be seen is called emanated light... This is what the Kabbalists refer to as “emanated light” (אור נאצל, ohr ne’etzal, see Etz Chayim 1:3, 12b and 13b). One might mistakenly infer from the use of this expression that the Sefirot are an essentially new light which Eyn Sof drew forth and emanated from Himself, yet which is still Godliness inasmuch as the Emanator is attached to the Sefirot. This would certainly be an error, because drawing one thing out of another is a bodily occurrence. If so, we cannot say of Godliness that He drew one thing out of another, because that which He draws forth will also be Godliness.