And azla ֝ to reside as a crown upon Israel, who is the Middle Pillar, Which is the Scroll of the Torah, comprising the five books of the Torah, and She was made a crownlet upon its head, in every one of its letters, of those known letters of the Scroll of the Torah. like this: Sh-‘A-T-N-Z G-Tz.cxxxviiiBT Menaḥot 29b
All the ‘Zayins’ ז are twenty-one, corresponding to the twenty-one mentions of tephilin (phylacteries) of the head, and corresponding to them, are the twenty-one mentions of the tephilin of the hand, which all add up to forty-two, corresponding to ‘the Name of 42’.