Part 13 · Chapter 38

And these three discernments are the three heads mentioned above, for the upper head of Atik, which is the Keter called the skull of AA, is the great upper surrounding [light] of all of them. And beneath it there is the second head, called the air, which is a brain in relation to the aforementioned skull, and it also becomes a skull in relation to the third head, called Hochma, as above. And this second head, called the air, is a small surrounding [light], which surrounds the inner light. And beneath it there is the third head, called the Mocha Stima'ah of AA, called the Hochma of AA, and it is the secret of the inner light.