According to the wisdom of Kabbalah, the “body” of the Partzuf is called a desire to receive in order to bestow, and the “soul” is the Light that fills it. In order to acquire a soul, we are building a connection between us, which means that we make a desire to bestow from the desire to receive. In order to do that, we connect with the group above the ego, give up the desire to receive, and turn it into the opposite use; thereby the desire to receive works in order to bestow.
The switch from the ego to bestowal is done by the Creator, I obligate Him to do so by my work in the group, in the environment, like it says: “My sons have defeated me.” He operates on me and then my desire to receive can work in bestowal.
Accordingly, I now treat the friends this way and we establish the connection among us by building forms of bestowal from the thickness of the desire to receive, which turns it into the purity of the desire to bestow.
The desire to receive is divided into five layers of “thickness,” from the root phase to phase four, and there is also a “spiritual embryo” in it, a point in the heart (•) that constantly evokes me, “shakes” me. In order to fulfill the “point in the heart,” I enter the group and summon upon myself the Light that Reforms, the Surrounding Light. First it performs “the first restriction” in me, according to which I cannot take my desire to receive into account. Then I can even work with my desire to receive in order to bestow, not in thickness but in purity, which is also divided into five levels. Accordingly I acquire five Lights: Nefesh, Ruach, Neshama, Haya, and Yechida, from the bottom up NRNHY.
Thus my desire to bestow is formed by the desire to receive that was in me before. This desire to bestow is called “a vessel for the soul.” Why for the soul? Because up to this level we receive the Light regularly, by using the thickness of the root, the first, and the second phases (NRN), while the Lights of Haya and Yechida cannot receive the Light regularly and so they reach us only as an illumination (HY).
From the 4th part of the Daily Kabbalah Lesson 1/6/13, “Body and Soul”