1. The tenth Sephirah of the cabalistic Tree of Life, the bottom Sephirah on the whole Tree. The term is a Hebrew word meaning "Kingdom." It represents the archetype of the number 10, the manifested aspect of the Godhead. It corresponds to the divine name Adonai ha-Aretz, the archangel Sandalphon, the angelic choir called Eshim (flames), and Olam Yesodoth, the sphere of the elements.
2. And from the rays of this Triad there appear three colours in Malkuth together with a fourth which is their synthesis. Thus from the orange tawny of Hod and the green nature of Netzach, there goeth forth a certain greenish 'citrine' colour, yet pure and translucent withal. From the orange tawny of Hod mingled with the puce of Yesod there goeth forth a certain red russet brown, 'russet' yet gleaming with a hidden fire. And from the green of Netzach and the puce of Yesod there goeth forth a certain other darkening green 'olive' yet rich and glowing withal. And the synthesis of all these is a blackness which bordereth upon the Qlippoth.
In Malkuth, Adonai ha-Aretz is God, the Lord and King, ruling over the Kingdom and Empire which is the Visible Universe.
And Cholem Yesodoth the Breaker of Foundations, (or Olam Yesodoth—the World of the Elements) is the Name of the Sphere of Operation of Malkuth which is called the Sphere of the Elements from which all things are formed, and its Archangels are three:Metatron, the Prince of Countenance reflected from Kether, and Sandalphon, the Prince of Prayer (feminine), and Nephesch ha Messiah, the Soul of the Reconciler for Earth. And the Order of Angels is Ashim or Flames of Fire, as it is written 'Who maketh his Angels Spirits and his Ministers as a flaming Fire,' and these are also called the Order of Blessed Souls, or of the Souls of the Just made Perfect.
Reading and Understanding the Marseille Tarot by Anna Maria Morsucci and Antonella Aloi is the first book that actually got me interested in this style of deck. I really love looking at the Majors laid out in the familiar three rows of seven....