Part 13 · Chapter 123

And this is what is said: "And from the shining of this whiteness do the righteous inherit four hundred worlds in the World to Come," for the whiteness itself is four hundred thousand worlds, but its shining is only four hundred worlds alone; for in Arich Anpin they are thousands, and in Aba veIma they are hundreds. And this is what is said "in the World to Come," because there they are hundreds, in Bina, which is called the World to Come. And you already know that all Keter is from the side of Ima, and this skull is Bina encompassing the Hochma, which is the hidden Mocha, a point in its palace. For this reason it says that the righteous inherit them in the World to Come, which is Bina.