In order to resolve these problems, it is necessary to understand the way in which the Supreme Lights affect man. It could have been that the actual substance (מציאות, metziut) of the Partzuf, i.e. Zeir Anpin, would itself have been literally renewed. In that case the change would have been in its exterior, which is vested with executive power, as explained earlier (see Opening 27) in connection with the functioning of the Line (the interior) through the Residue (the exterior). This would have given him an interior consonant with this intrinsic change in him. If that had been the case in the upper realm, there would also have to be a corresponding change in the substance of the body here below with the entry of the Additional Soul.