It’s a problem that a person can only study what is below the speaking level: the still, vegetative, and animate levels of the will to receive (desire). He is unable to separate and study the desire of the human level because he is not similar to the Creator.
The human level is regarded as the “divine part from Above.” And this part is invisible to you right now; hence, you are unable to study it.
The desire of the human level is called a soul; it is the matter of the soul. The matter is the will to enjoy, and its form is its equivalence to the Creator. This is exactly what Kabbalists study: where He and I are similar, in what way, on what levels, and in what combinations of conditions?
The wisdom of Kabbalah studies how the matter of the desire to enjoy acquires the Creator’s form; this is when it may be called a soul. It’s called a “soul” (Neshama) because it is the highest degree of similarity to the Creator which we are able to reach before the final correction (Nefesh-Ruach-Neshama).
This limitation exists in this science until all people engage in it, but eventually, we will all be able to study it at a much higher level.
From the 4th part of the Daily Kabbalah Lesson 12/15/10, “A Handmaid that is Heir to Her Mistress”
A Kabbalist Is A Scientist Who Studies The Upper Nature
The Second Force