It's true THK was published in 1929 but he wrote another book in 1902,
The Doctrine and Literature of the Kabalah. From what I can tell, THK may be a revised version of it. They're very similar.
I found something pretty interesting in the ritual of the Practicus grade that I thought I'd post. This grade corresponds to Water, Cups in the tarot minors. Sorry it's a bit long:
"
Master of the Temple: Frater Adveniat Regnum (vel nomen aliud), the most practical of all paths is that by which we go back whence we came from the exile of the soul in separation into the paradise of the soul in union. The temple in this grade is a memorial of that sanctuary that is called the lower Eden, the place of the just clothed in ethereal envelopes, signifying all perfect purity. Herein is reflected the supreme mystery of faith and the living presence of Shekinah. As such, it is that garden that is watered by the glorious and unfailing river flowing down from the Eden that is above. There is the supernal paradise, the place of which is in Binah, and there is the Divine presence of Matrona and Taboona, the Shekinah in transcendence. This altar in the middle place of our temple represents the altar of sacrifice that was erected, speaking symbolically, for the unspotted offerings of desire and will in the world before the traditional fall of man. That world is understood as the lower Eden, and it is sometimes identified with Malkuth; but it is not the kingdom of this world in a material sense. It is rather a spiritual place or state preceding, in our symbolism, that which is physical, and intermediate for man between the earth on which he now dwells and the heaven to which he belongs.
The altar by which you stand is in the form of a double cube, and the cube unfolds as a cross. On such a cross is the figure of a man extended in the great diagram before you, which represents the Tree of Life in the transcendence. Above Kether the power and the glory of unmanifest Deity descends from the region Ain Soph. Prior to the generation of beings and of things it is called the closed eye of the unknown darkness; but for the evolution of the cosmic worlds and the manifestation of the Divine therein, it is said that the eye opened, and the radiance of the ineffable Spirit poured through the aeons and the spaces. Kether represents the first movement of the Divine in self-unfoldment through begotten worlds and for manifestation to hierarchies of intelligence generated therein and thereby. Kether is called the place of God and His Shekinah in the state of absolute union; but the procession of the great law brought them forth in a state of distinction, which is not to be understood as separation. They became in this manner the Abba, or father, in Chokmah and the great mother, Aima, who is the transcendent Shekinah in Binah, corresponding respectively to the letters of Yod and He of the Divine name. These are male and female, and they produced as the fruit of their union a Divine son, who is shown in the diagram extended on the sephirotic cross. His head rests upon Daath, which is supernal knowledge; the arms stretch to Chesed and Geburah, while Tiphereth is over the region of the heart; and that which in the purity of the secret tradition is termed an organ of holiness is veiled by the Sephira Yesod. The feet of the figure rest on Malkuth; to indicate that the kingdom of this world is in subjection to the kingdom of heaven. Among the letters of the Divine name, this Divine son is in correspondence with Vau. He is the first begotten of the mighty ones, by He came into generation with Her who is His Divine bride and sister, the He final of the sacred name and the second aspect of Shekinah. She was at first contained within Him, as Eve in the nature of Adam, but was afterwards brought forth like Eve, and they abode together in the unity of mystical marriage.
There came, however, a change upon the face of things, and this union was broken. The He final was divided from the Vau and descended or fell to Malkuth, where the lower Shekinah is located in the great diagram. It is part of the legend concerning the fall of man, whom she followed into the exile of separation, being driven out with him. But her expulsion was for the salvation of the world, and a day will come when all nations shall enter under the wings of Shekinah; the Vau will raise up the He; the divided name will be restored in all perfection; and man having entered into his birthright will dwell with God in unity. It is she meanwhile who leads him on the path of his return to God.
Such is the legend of the grade of Practicus, derived from the secret tradition…."
Again, this legend is given to the candidate for the grade of Water. But it deals to a large extent with Malkuth and the Shekinah in manifestation. If you go back to the grade that specifically corresponds to Shekinah in manifestation, that of Zelator (Malkuth), some interesting things are revealed. "The sacred words are ADONAI MALKAH, and - as understood among us - they have reference to the bride or queen of Earth..." ADONAI MALKAH (Lord Queen) is Shekinah in manifestation. It's possible the upside down M stands for Malkah (reflected from above) rather than Matrona.