Nefesh HaChayim, Reb Itzele's Long Annotation

And the acceptance of the sovereignty of heaven via action is the essential aspect of the original intention509Heb.: n’koodaht ha-p’neemeet—literally “the inner point” that caused Him (so to speak) to conceal all the worlds, so that man would be able to be created in the world of Ahseeya. And this is also stated in the Zohar regarding His (blessed be He) quality of Sovereignty510Heb.: malkhootoe, that it is complete in all of its s’feerote, and is the completion of the nine aspects. And this is “ten and not nine” (Sefer Y’tzeera 1:4). And it’s explained in the Etz Chayyim that the key aspect of the characteristic of His (blessed be He) sovereignty is that it will become enlarged to be the “master of ten”511A complete pahrtzoof has ten component aspects. Until it has ten, it is not complete., in the context of becoming a pahrtzoof. This ends [the explanation].