The Sefirot are what came forth from the Space brought into being at the time of the Tzimtzum. Each Sefirah is a part of the Residue. Within each Sefirah lies an inner essence that exists by virtue of the Line of Eyn Sof, blessed be He, which enters into it. The Line shines within the inner essence of each Sefirah as the soul of the souls, and in this aspect it is completely equal on all levels. However, the soul, which is the garb within which the Line is clothed, is made to match each Partzuf according to what it is, and this is what distinguishes the different Partzufim from one another. The difference is not in the Line but in its garb, which is the soul.