Part 15 · Chapter 215

And this is the matter of the Megillah being called "iggeret" and called "sefer," and having the laws of the Written Torah. For the Torah scroll is the Yesod of Aba, called the Written Torah, in the form of a book, like an elongated Vav; and the Megillah is the illumination that emerges outside the Yesod, as mentioned, and it too is long in the form of a Vav, in the form of an elongated scroll. And these notes suffice for the discerning.