Part 13 · Chapter 62

And know that the Hesed of Atik, within the Keter of AA, is called pure air [Avira Dachya], and the Gevura of Atik, within the Hochma of AA, is called Botsina deKardinuta. And this is what it said in the Idra of Haazinu, page 292, side B: "From the Botsina deKardinuta came out a strong striking spark, that struck and brought out the sparks of the first worlds, and they mingled in the pure air," etc. The explanation of the words: in what I have taught you above at the beginning of the chapters, that AVI have their vitality drawn from these two heads.