Part 12 · Chapter 58

And these ten bloods are the secret of the fifty gates of Bina, which open and spread within ZA. For behold, these ten names in their simple form have in them forty letters, and the inclusion of the ten names makes fifty. Also, in a second way: in the ten names Ehyeh in their simple form there are forty letters; and in each name, in the secret of the posterior, there are ten letters, as follows: Aleph, Aleph-Hey, Aleph-Hey-Yud, Aleph-Hey-Yud-Hey. Add them to the other forty, and they make fifty. And the first way is more correct.