Question: How does the transition to the characteristics of the spiritual world happen?
Answer: The transfer of the properties happens through the extension of the Light by way of the desire. From the upper (Keter), through Hochma, Bina, Zeir Anpin, and Malchut.
Question: Hochma and Malchut are both a desire to receive; what is the difference between them?
Answer: Hochma is a desire to receive that is created by Keter in the necessary order, as within a child and a beast, while Malchut is a desire of a person who can manage it.
Question: Is it possible to say that this is an independent desire?
Answer: No, the desire is not independent, its reactions are independent.
From the Kabbalah Lesson in Russian 3/5/17