This is similar to man’s additional Shabbat soul. The building is already complete without it and the additional soul adds nothing to man’s body or physical functioning. What it adds is only an enhancement of status and splendor, as will be discussed in its appropriate place below (see Opening 132).
This division produces the Second Israel Sabba-Tevunah. This is as discussed above.
It could be asked why all the Partzufim change their names when they undergo a change of function, while these are simply called the Second Israel Sabba-Tevunah. The reason is that the function of the latter is identical with that of the First Israel Sabba-Tevunah – albeit on a lower level. Both are what Abba and Imma give to Zeir Anpin, but when he can only receive from the very end he receives from the Second Israel Sabba-Tevunah. The latter are a part of Malchut that carries out the same function as the whole although on a lower level. And when they are not needed they simply become included in the higher level: in the Second Maturity, the Second Israel Sabba-Tevunah become absorbed in the First Israel Sabba-Tevunah. This is not so in the case of the other Partzufim, each of which has its own distinct function. The proof is that at no time do the other Partzufim cease to exist through being absorbed in others as happens in this case.