The Zohar, Chapter “VaYigash (Then Judah Approached),” Item 129: When the firmaments and the animals, meaning the Nukva, are corrected so that everything is one Merkava for this man, ZA, it is written, “And Joseph prepared his Merkava [chariot/structure], and went up to meet Israel, his father, to Goshen.” This is a Tzadik [righteous], Yesod de ZA, called “the righteous Joseph,” who tied and united his Merkava, the Nukva, with the firmaments and the animals.
Here The Zohar speaks about the desire created by the Creator, which begins to resemble Him, His actions. The Creator is the source that shows the desire to enjoy (that He created) His actions upon it. The Creator influences the desire to enjoy in a variety of ways, and, by perceiving these forms, the desire starts developing from them.
The desire perceives the Creator’s actions in six different directions (four directions of the world and up-down) as well as through a variety of colors, tastes, smells, temperatures, and so on. In essence, the Light emanating from the Creator affects the desire to enjoy and it receives certain impressions.
In accordance with the sensations experienced, the desire ascribes different names to these impressions and defines them by various forms. These phenomena do not exist outside of the desire to enjoy since we are unable to perceive anything outside of our desire. For example, we can say that there is simple Surrounding Light; however, we can only talk about certain phenomena when they’re already within the desire, when the desire already senses them in one way or another.
The Zohar explains the structure of the systems, that is, it clarifies how the desire to enjoy is impressed by the Light and how this determines the desire’s structure. Each time the desire receives an impression from the Light, it acquires a specific shape, which is how the Light leaves various imprints on it. The desire to enjoy is like a living sculpture with a myriad of internal and external forms and systems.
That is why the creature represents an extremely complex system that originates from the influence of the Light upon it. The direct influence of the Creator on the creature means that the creature goes through all His actions and acquires forms in accordance with the system “from Above to below,” that is, directly from the Creator.
There is also an opposite action when the creature says: “Stop! From here on I will operate the system on my own. I want to be similar to You. It’s enough. I’ve already received all the impressions and Reshimot, and now I want to work independently. I want to operate the system that You imprinted in me, in the way You do it. I want to become as giving as You are. I want to bestow to You!” This is called “work from below to Above.”
From the Evening Zohar Lesson 6/9/10