However, the metaphor does not correspond precisely to the issue at hand, since in the book of wisdom that is in this world, both the white and the ink in its letters are lifeless. The manifestation of wisdom on their account does not occur in their essence itself but outside them, i.e., in the mind of the reader. This is not the case for the four worlds Atzilut, Beria, Yetzira, and Asiya, which are the book of the heavens, as all the brains in the spiritual and corporeal realities are present in them and are drawn from them. Thus, you should understand that the white background **it contains, which is the medium¹² of the book, is itself the intelligible matter in the book, while the three colors of the ink serve to elucidate this intelligible matter.**¹³, is more central and significant than the ink forming the letters. This is because the ink is simply the enclothing of the divine truths of Atzilut, represented by the white, in lower-level forms.

footnotes: ¹² See section #8# above. ¹³ Unlike physical books, in which the pages and letters are "lifeless," and the concepts take shape outside the pages and within our minds, in the system of the higher levels of reality, the "pages" and "inked letters" are themselves dynamic and spiritually animate. Thus, both the ink and the white background bearing the ink are integral components of the "book." In fact, the white background, representing the level of Atzilut