In his book The Tarot: A Key to the Wisdom of the Ages, Paul Foster Case published the Hebrew letter attributions of the Golden Dawn for the first time.
This tableau was used by the American branch of Alpha et Omega when Case was the "praemonstrator" (chief instructor) of that order's Thoth–Hermes lodge in Chicago.
The tarot tableau is an arrangement of the 22 major arcana cards into 3 horizontal rows that span across 7 vertical columns.
Builders of the Adytum, although an organization devoted to mysticism (specifically Western esotericism), has repeatedly emphasized that tarot cards are primarily a tool for meditation, not fortune-telling.
[citation needed] Case invented a new, non-magical definition for the word "divination": "the use of spiritual intuition to find solutions to problems".
Case then closed with the warning: "Finally, let me reiterate the thought that this is not to be used for vulgar fortune telling, or to amuse a party of friends.
Case based the Cube of Space upon two verses in the Sepher Yetzirah: the first, in chapter 4, associates six Hebrew letters with six cardinal directions (up, down, east, west, north, south); the second, in chapter 5, associates 12 Hebrew letters with 12 diagonal directional arms or boundaries (different translations use different terms), which Case interpreted as the 12 edges of a cube.