Rooted in this Residue was everything that is destined to exist, and what was not rooted there cannot come into being afterwards. Even so, all that is rooted there could not have come into being without the Unlimited Himself governing it. Nevertheless, the Unlimited acts only in accordance with what is rooted in the Residue. This is like the soul, which governs the body solely according to the nature of the body.
The action of the Unlimited within the Residue is called one Line from Eyn Sof, blessed be He, that enters into the hollow cavity. For what He actually brings about within the Residue is in accordance with the nature of the created realms and beings. Yet in bringing it about, He Himself acts on His own level of intrinsic perfection. As far as the created realms and beings are concerned, it is the Residue.
But through the Line, He acts on His own intrinsic level of perfection. Further, while what was produced is, as far as the creatures are concerned, the Residue, the way in which Eyn Sof operates it is through the Line, which is on His plane of limitlessness, just as He is without limits.