Keter and Bina possess such special properties that they can descend anywhere they wish to and work on the lowest desires. Bina is Hassadim (mercy), and Hassadim can dwell in any place, protected by their intention of bestowal in order to bestow. But how can Keter do the same if, beside Hassadim, it has Hochma (wisdom)?
The key is that Keter fills the desires and relates to everything from below upward. Hence, it is able to descend into any desires living in egoistic intentions, just as Bina, but for a completely different reason.
Keter is the property of the Creator who wishes to fill the entire creation, Malchut, to the fullest. It isn’t the Light of fulfillment, Hochma, but the plan of creation, its initial thought, its program. In a way, it determines what the Creator wishes for us in the very end: to elevate us to His status.
This is why the Sefira of Hochma is marked with the final point of the letter “Yod”: It is the program that begins to get realized, starting with the Sefira of Hochma and below. Hochma is the Light of the purpose of creation, and, below it, Bina is the Light of correction.
Thus, there is GAR, the three upper Sefirot related to the Creator: Keter is the program, Hochma is the purpose of creation, and Bina is the correction of the created being. Further on, the realization of the lower ones takes place. It is Zeir Anpin, the system which determines how the lower one should change and what sequence of acts is necessary for that. As to the lower one, which must change and undergo these modifications, it is Malchut. This is how the created being gets arranged from five parts.
And since Keter is the point of conception, the program of creation, the original idea, it is present in any place! After all, without this idea, nothing would exist, not even the tiniest of desires.
But in relation to the lower ones, Keter acts from below upward since it is aimed solely at elevating them to correction, even if it has to descend into the lowest Klipot (shells) and commit some transgressions on this journey. But after that, as The Book of Zohar describes, all of these problems and transgressions seem to have been correct actions to us, which we had to undergo because they helped us to see our final corrected state.
All of this is done by the Creator’s hand, and we ourselves haven’t made any mistakes, committed any crimes, or made any corrections. Hence, in all its behavior and treatment of the lower ones, Keter is above all limitations and restrictions. It is the thought contained in every particle of creation and its every action. Hence, it expands everywhere and works from below upward in order to connect all parts of creation and lead them to the end of correction (Gmar Tikkun).
Bina works in a different manner: It is the Light of Hassadim, the correction of the created being. Correction may take place in any condition and any place according to the desire of the lower one to be corrected and to receive the property of Bina, the attribute of bestowal. If you wish for it, you will get it, without a limit!
Therefore, Bina also can expand everywhere since it is Hafetz Hesed (pure bestowal). On the other hand, Hochma is the Light of the purpose of creation that fills the desires after their correction is done by Bina, which had been received beforehand. Zeir Anpin organizes the process that determines how such correction is carried out.
Bina, wishing to be similar to the Creator, gives birth to Zeir Anpin (ZA) and works within it in order to bring it to the level of Keter. But ZA cannot attain the level of Keter as Bina desires it to do since ZA can do so only with the help of Malchut!
It turns out that ZA is the concealed Creator, Keter, the highest quality, Atzmuto, the plan of creation. ZA and Malchut work in a pair because ZA cannot become as Keter unless Malchut joins ZA and passes all her desires to him.
Hence, Malchut can correct itself only by following ZA’s example. Watching Him, she learns what desires and correction she needs in order to merge with Him. Malchut is all the souls, ZA is the Creator, and their coupling is the merging of all the souls with the Creator.
But when they finally merge, they ascend to AB – SAG, Hochma and Bina. And when they merge there, they become part of Keter. That is where the program of creation ends!
From the 3rd part of the Daily Kabbalah Lesson 10/22/10, Beit Shaar HaKavanot
Invitation to The Bride’s Chamber