Each Sefirah is a part of the Residue. The name Residue was applicable as long as no further action took place beyond the fact that this is what was left as a result of the Tzimtzum (see above, Opening 26, Part 1). In other words, before the Line began to activate the Residue, the latter was defined as being what remained of the light of Eyn Sof after the Tzimtzum – a Residue. Afterwards, the Line began to activate the Residue, and its various parts were structured and made into worlds and Partzufim, so that each Sefirah, wherever it may be, is one part of the Residue.