How Ramchal Explains the Reshimu and Kav as Creation's Foundations

Kalach Pitchei Chokhmah, the 138 Openings of Wisdom by Moshe Chaim Luzzatto (Ramchal), reaches a turning point in its account of creation when the discussion moves from the act of tzimtzum to what the tzimtzum left behind and what was then built on top of it. The first passage treats the reshimu, the residue of primordial light that remained inside the cleared space, and identifies it as the Malchut of Ein Sof. The second passage closes the foundational arc by announcing that the reshimu and the kav have now been laid down, and that the next stage of the treatise will explain the first structure built from them, the order called Adam Kadmon.

How the reshimu emerges from the contraction

The reshimu in Ramchal's account is not a new substance introduced after the contraction. The passage insists on continuity. The light that remained inside the vacated space was a small part of the same light that had filled the whole prior to the tzimtzum, not a separate creation. Before the contraction the residue had no recognizable identity, because there was nothing in the undifferentiated light from which it could be distinguished. After the contraction the residue became identifiable, because the empty space gave it a boundary against which to register as a presence.

This framing matters for the structure of Lurianic kabbalah as Ramchal received it. If the reshimu were a separate light, the system would carry two unrelated origins for everything that follows, and the unity of Ein Sof would be compromised at the outset. By holding the reshimu inside the original light as a portion that became recognizable rather than a substance that was added, Ramchal preserves the simplicity of the source while allowing the differentiation that creation requires.

Why Ramchal identifies the residue with Malchut of Ein Sof

The second move in the first passage is the identification of the reshimu as the Malchut of Ein Sof. Malchut in the Sefirotic system is the receiving Sefirah, the vessel that holds what the upper Sefirot transmit downward. To call the residue Malchut of Ein Sof is to say that the contraction did not leave behind a random remainder. It left the receptive aspect of the original light, the portion oriented toward what would receive, in a state where it could now function as a vessel because the cleared space gave it room to act as one.

Ramchal offers an analogy from the lower worlds. The relationship between Malchut and the other Sefirot in the worlds of Atzilut and below provides a model for the relationship between the reshimu and the departed primordial light. In the lower worlds, Malchut receives from the upper Sefirot while remaining of the same divine substance. The reshimu stands in the same posture relative to Ein Sof. It receives the kav, the line of light that re-enters the cleared space, while being itself a portion of the same light from which the kav proceeds.

What the kav adds to the cleared space

The second passage assumes the kav as already explained and turns to what was built on the foundation of reshimu and kav together. The kav in Lurianic teaching is the thin line of light that crosses the boundary of the cleared space after the tzimtzum, entering the residue and organizing it. The reshimu without the kav would remain a passive trace. The kav without the reshimu would have nothing to act upon. Together they form the working pair from which all subsequent structures derive.

Ramchal's treatise places the kav and the reshimu in sequence, treating them as the two foundations that must be in place before any further account of creation can proceed. The second passage marks the moment when the foundational discussion is complete and the constructive phase begins. The proposition that follows divides into three parts. The first explains the first order, Adam Kadmon. The second identifies that order with the Name of the Holy One. The third explains the meaning and purpose of the order.

How the tradition preserved Ramchal's synthesis

Ramchal wrote in Padua and Amsterdam in the early eighteenth century, working from Lurianic sources that had been circulating in oral and manuscript form since the late sixteenth century. His achievement in Kalach Pitchei Chokhmah was to give the Lurianic system a propositional structure that could be studied like a philosophical treatise, with numbered openings, defined terms, and explicit reasoning. The text was preserved by his students and printed posthumously, gaining wide circulation in the nineteenth and twentieth centuries when Lurianic kabbalah moved from closed study circles into broader rabbinic and Hasidic curricula.

The two passages treated here illustrate the method that made the work durable. Each opening states a proposition, identifies the key term, and then resolves a difficulty that the proposition raises. The first passage answers the question of whether the residue is the same as the original light or different from it. The second passage answers the question of what comes next once the foundations are established. Ramchal wrote in a register that students of philosophy and students of kabbalah could both follow, and that double accessibility kept the treatise alive across communities that did not always share a vocabulary.

What the foundational pair makes possible

The reshimu and the kav together are the platform on which Lurianic kabbalah builds everything that follows. Adam Kadmon, the partzufim, the worlds of Atzilut, Beriah, Yetzirah, and Asiyah, the breaking of the vessels, and the work of tikkun all presuppose that the cleared space contains a residue that can be acted upon and a line that can act upon it. Without the reshimu, the kav would shine into emptiness and produce nothing. Without the kav, the reshimu would sit in the cleared space as an inert trace.

Ramchal's two passages mark the closing of one phase and the opening of another. The first secures the identity of the reshimu as a portion of the original light, now recognizable because of the contraction. The second announces that the foundational work is finished and the constructive account of Adam Kadmon will begin. The treatise treats these passages as hinges, and the hinges hold because the propositions on either side are stated with the precision that Kalach Pitchei Chokhmah made its signature. The Lurianic system gained, through Ramchal's pen, a form in which its claims could be examined one at a time, and the form has carried the teaching for three centuries.