Mediation — what Hegel calls the determinate rather than the indeterminate, “infinite”, or classical negation of immediacy — is what makes things intelligible. Hegelian mediation, I want to say, just is form or structure made explicit by articulating intermediate relations of material incompatibility (determinate negation) and material consequence. As such, it involves a metaphorical “thickness” in a given moment that is typically the result of an extended process. Mediation is the substance of Geist and the soul of Hegelian dialectic. (See also Transcendental Field.)