The Thoth Deck- Four of Disks, represents Chesed (Mercy) establishing the Universe in three dimensions, that is below the Abyss. Here, the Sun is in Capricorn, the sign in which the Sun is reborn. Basically this means that the generating idea is established in its full material sense.
The Disks are shown as large , square and solid, representing a fortress comprised of the Four Elements. We know from history, that Fortresses are to keep Law and order by constant authority and a vigilant defense. Though seemingly stationary, the Disks revolve due to the fact that the Sun is the "dead center" of the engineer; and Capricorn is the point where the "Sun turns Northward".
Now the word, engineer, may have left you confused----but just know that the Fortress with a moat is considered a Womb. The Greatest Engineer is "The Womb with a View", or The Goddess Principle, In Yi King, the Sun in Capricorn is represented as the Second Hexagram, Khwan, which is the Female Principle The student may wish to compare Khwan, to the English word Queen, Anglo-Saxon Cwen, Old Mercian Kwoen, All of which are The Female Principle. As in most of the Tarot, there are layers of understanding, that require diligent pursuit.
When this card is thrown during a reading, it represents 4wks or 4months of monetary gain and influence, A present arriving in that time period. Assured material gain, success, rank,dominion,earthly power completed and going no further than earth. This is an Earth as boundary card.
Now if ill dignified, the meaning could be prejudice,covetous, suspicious, careful and orderly, but discontented. Very little enterprise or originality. More like imprisoning oneself in order to be "safe". Again, dignity is shown by the accompaning cards.
Thank you for your interest and comments. May you live long and prosper!