“We see that this natural Divine law does not demand the performance of ceremonies—that is, actions in themselves indifferent, which are called good from the fact of their institution, or actions symbolizing something profitable for salvation, or (if one prefers this definition) actions of which the meaning surpasses human understanding. The natural light of reason does not demand anything which it is itself unable to supply, but only such as it can very clearly show to be good, or a means to our blessedness. Such things as are good, simply because they have been commanded or instituted, or as being symbols of something good, are mere shadows which cannot be reckoned among actions that are the offspring, as it were, or fruit of a sound mind and intellect.”
–Spinoza, A Theologico-Political Treatise
A rather obvious reading of the above passage would be to see it as a version of the fantasy of pure reason. But then we could also follow in Macherey and Althusser’s ‘Spinozist’ footsteps and read this quite differently. Spinoza’s god is the singularity of being and reason — a la the Spinozist conatus. His conatus or being can, therefore, be construed as the uninterruptedly, as opposed to sequentially, continuous excess of symbols that are deposited in and as the determinate moments constitutive of precisely this infinitely excessive, and thus dispersive and non-teleological movement, and which as those symbolic deposits tend to acquire a life of their own by getting instituted as commands (or, as Spinoza would say, human laws). That Spinoza conceives of being as a willing-knowing singularity becomes evident if we follow, later in this text, his explication of god as the concomitance of willing of things that come to comprise the world and the knowledge of those things.
Read in this manner, this Spinozist ‘version of the fantasy of pure reason’ can be envisaged, as it indeed is by Althusserians, as a theoretical mode to ground the practice of ideology-critique, which as that practice is derived from Marx’s articulation of his dialectical method as the theory of critique of political economy. Following Marx, who adopted Hegel’s dialectic only to see it precisely as the inverted reflection of the antagonism to the dialectic itself, Althusserians, particularly Macherey, would read ideology — which Althusser quite correctly characterised as the movement of its own displacement — as the image, or symptom, of its own absence, void or impossibility. And this is an approach that can arguably be read off Spinoza, including from his unambiguous suggestion here that “symbols of something good, are mere shadows” of that good.
The reason why Spinoza is open to such a reading is possibly because his thinking of being a la conatus — which for him is also, at once, “the offspring, as it were, or fruit of a sound mind and intellect” — precludes the need for it to be the ground for some kind of a moral law. In Kant, on the other hand, we have the moral law kick in as retroactive rationalisation (read metaphysicalisation) — and thus prospective regimentation — of multiple instantiations of pure reason as practical reason.