This text is from Crowley's Book of Thoth.
The Number Nine, Yesod, in the suit of Water, restores the stability lost by the excursions of Netzach and Hod from the Middle Pillar. It is also the number of the Moon, thus strengthening the idea of Water.
In this card is the pageant of the culmination and perfection of the original force of Water.
The Ruler is Jupiter in Pisces. This influence is more than sympathetic; it is a definite benediction, for Jupiter is the planet of Chesed which represents Water in its highest material manifestation, and Pisces brings out the placid qualities of Water.
In the symbol are nine cups perfectly arranged in a square; all are filled and overflowing with Water. It is the most complete and most beneficent aspect of the force of Water.
The Geomantic Figure Laetitia is ruled by Jupiter in Pisces. For its meaning consult the "Handbook of Geomancy" (Equinox Vol I, No.2). Laetitia, Joy, gladness, is one of the best and most powerful of the sixteen figures; for the Solar, Lunar, and Mercurial symbols are, at the best, ambiguous and treacherously ambivalent; those of Venus portend rather relief than positive beneficence; Saturn and Mars are seen at their worst; and even the stable-companion of Laetitia, Acquisitio, has its unpleasant aspects, and even its dangers. But the consonance of Laetitia with this card amounts to little less than an identity; the wine is poured by Ganymede himself, unstinted vintage of true nectar of the Gods, brimful and running over, an ordered banquet of delight, True Wisdom self-fulfilled in Perfect Happiness.