Therefore, when the bad of the animal, created by all these levels of concealment, will be sorted out and removed (through the effort of the Divine soul), it will automatically reach this level of great love for Hashem described above, that it receives from the source of the animal soul from the World of Tohu, with a much greater intensity than it had before it descended into this world.
"And it shall be that the first son will be born to the wife he does not like" (Devarim 21:15):
This is the meaning of the verse quoted at the beginning of the maamar, (Devarim 21:15) “And it shall be that the first son will be born to the wife he does not like,” meaning that specifically through the animal soul, which is connected to unholiness, which is hated by Hashem, the Divine soul “will give birth to the ‘first-born’ son,” meaning that it is also connected to the higher level of Tohu, referred to as “before there was a ruling king to the Children of Yisroel,” in addition to its own innate love for Hashem from the World of Tikkun.
The animal soul contains an element of unholiness which is “hated” by Hashem, but is also called the “first-born,” since in its ultimate source it derives from the World of Tohu, which is “before” Tikkun, just like Eisav was born before Yaakov. Now, just like Yaakov was ultimately able to receive that first-born birth-right from Eisav (see Parshas Toldos), (and come out with his own level of Tikkun together with the advantage of Eisav’s source in Tohu), so too, every Jew’s Divine soul is able to refine and elevate the animal soul so that it will receive a love for Hashem on the level of Tohu.
