Part 16 · Chapter 29

And when the light of Aba is given to ZA, to shine in him, Ima does not become an actual screen separating between Aba and ZA; rather, Ima becomes like a partition and a garment for the light of Aba, and the mouth of her Yesod is open like an open window, and through there the light of Aba goes out to ZA, and there is no screen at all in the mouth of that window.