Part 13 · Chapter 90

Now the reason they are four hundred judgments is because there, opposite it, within, is the secret of the Daat of Arich Anpin, and within it are the Gevurot, which are one Name of YHVH; and each of its letters is included of one hundred, making four hundred houses of judgment. Understand this. And it is found that the Yesod of Atik is within the Daat of Arich Anpin, and the Daat of Arich Anpin is within its forehead.