The Thoth Deck 8 of Disks is called PRUDENCE. Disks are Pentacles or Coins, in other decks. But Disks is an appropriate symbol, something on which Crowley and I both agree. Disks must be stabilized by a spinning motion, a circular rotational force, in order to hit their mark. Even the atoms of rocks are spinning in a centrifugal manner, so when representing the earthly powers, the spinning of the Disk, with its internal spin best shows force and form as one presence in the crystalline light.
The Eight of Disks-Prudence, is Hod in Assiah. the material World. The Sun is in Virgo and the angels of this Decan are; Akaiah and Kehethel.
Virgo is noted to be a very practical sign which tends to cause over concern with small details.[Illustration of Tree of Life from the Text Book: The Qabalistic Tarot by Robert Wang]
Because this is an eight, any gain that prudence gives is soon dispersed making Prudence no great virtue.
The message in divination, is that of skill, prudence, and over-carefulness about small things, at the expense of the larger. But because Hod is represented by Mercury and Mercury is exalted in Virgo, there is also predilection for intelligent loving, involving material matters such as, agriculture, artistic craftsmanship, and engineering. The Ruler ship of the Sun in Virgo suggests birth, as well,thus the disks are arranged in the Geomantic figure Populus. These disks are then shown as flowers of a Great Tree, rooted solidly in fertile lands.
When the 8 of Disks is thrown during a reading, the querent is in a moment of creative birth of 8 weeks or 8 months, requiring the practice of physical caution, carefulness, and prudence. A type of physical wisdom radiating from a inner place of balance and integration. Making sure that all the bases are covered; every "t" crossed and and every "i" dotted. Making intelligent choices so that the material world more closely conforms with one's needs. The possibility of turning a talent or skill into a profession. Skill in work with energy and forms, such as fingers working on a manipulative substance.
The negatives would be focusing to tightly on the small details and not seeing the big picture!
Thank you for your interest and comments. May you live long and prosper!