You will thereby understand that the upper point of the yod, which is the mystical meaning of the vessels of Keter, indicates Bina and Tiferet and Malkhut that are incorporated in Keter.57This point, which the author of the Sulam expands upon in the next sentences, is the key to solving the aforementioned difficulty. Since every sefira is itself composed of all the sefirot, even the sefira of Keter has its own internal level of Bina, Tiferet and Malkhut.
It is these lower aspects of the sefira that "translate" its dynamic into a receivable "form" for the ensuing lower levels. It is this lower aspect of these higher sefirot that is represented in the letter forms of the four-letter name of God (the Tetragrammaton). And similarly, the yod of Havaya, which is a vessel of Ḥokhma, indicates Bina and Tiferet and Malkhut that are incorporated in Ḥokhma. Thus, the Keter and Ḥokhma that are incorporated even in Bina and Ze’er Anpin and Nukba58Ze'er Anpin and Nukba are references to Tiferet and Malkhut using the partzuf names of these structures. do not have vessels, whereas Bina and Tiferet and Malkhut that are incorporated even in Keter and Ḥokhma do have vessels.