Atika is present in three, in two and is one This Atika, Arich Anpin, is present in three heads. They are the skull, the air, and concealed Chochmah (as said in the Great Gathering, commentary to section 23). They are incorporated in a single head, being altogether one head of Arich Anpin. That uppermost head, the unknowable head that is the head of Atika, is the highest, that is, above the three heads of Arich Anpin.
Atika Kadisha is imprinted with three heads that represent the three columns – Keter is the right one, the hidden brain is the left, and the air is the central column. In the same way, all other candles that shine from it, namely, the Sfirot, are imprinted with three. There are three columns at the top, called Chochmah, Binah and Da’at; three columns in the middle, called Chesed, Gvurah and Tiferet; and three columns at the bottom, called Netzach, Hod and Yesod.
Moreover, Atika Kadisha is imprinted on two, as the whole of Atika is in two: one is the supreme Keter of everything supernal, the head of all heads. It is the skull of Arich Anpin that includes within it the concealed Chochmah. The second is that head above it, that is, the head that is unknowable. Similarly, all the other candles are concealed within two.
This is the central column that incorporates Chesed and Gvurah, which are not united, to reconcile between right and left, as explained regarding supernal Aba and Ima above (in the Great Gathering, section 181) that they stem from the two heads – the unknowable head and the skull of Arich Anpin. Moreover, Atika Kadisha is engraved on and concealed within one, that is, all the lights within it are included in the influence of the light of Chassadim alone.
It is one and everything is one. Similarly, all the other candles are hallowed and connected and revert to one, and they are one.