…this is in terms of what is attributed to Arich Anpin’s own intrinsic mode of government. As discussed earlier (in Opening 95), Kindness, Judgment and Mercy are attributed to Arich Anpin as the root of Zeir Anpin (and in this aspect we speak of the Three Heads of Arich Anpin – see further in Opening 104). However in terms of Arich Anpin’s own intrinsic essence – total Kindness – the only way they divide up is in terms of the Skull and the Brain. (The Skull and the Brain are called two heads of Arich Anpin, and later, with the Cavity, אווירא, avira, these become the Three Heads – Etz Chayim, Shaar Arich Anpin ch. 3.)