"The woman sat like that blind interlocutrix between Boaz and Jachin inscribed upon the one true card in the juggler's deck which they could not see come to light, true pillars and true card, false prophetess for all."
The High Priestess or The Popess Tarot card in the Rider-Waite-Smith deck
Public DomainThe High Priestess or The Popess Tarot card in the Rider-Waite-Smith deck - Credit: Pamela Coleman Smith

This is a reference to The High Priestess, the second trump or Major Arcana card in most traditional Tarot decks.

In the Rider-Waite-Smith Tarot deck, upon which many modern decks are based, The High Priestess is depicted sitting between white and black pillars—'B' and 'J' for Boaz and Jachin, the two pillars which stood at the threshold of Solomon's Temple.