How did G.W.F. Hegel argue that reality is rational and intelligible?

G.W.F. Hegel argued that reality is rational and intelligible by positing that reason is not merely a tool imposed by the human mind, but is instead constitutive of the world itself. Contrary to Immanuel Kant, who limited human knowledge to phenomena, Hegel maintained that reason is capable of "absolute knowledge" that penetrates into the essence of reality.12

Hegel’s conviction is summarized by his famous declaration that "the rational is the real, and the actual is rational". He viewed reality as a spiritual, organic whole—often referred to as the "Absolute" or "World-Spirit"—that undergoes a dynamic, historical evolution. This evolution occurs through a dialectical process, where contradictions are not merely errors but necessary stages of development. As the Spirit moves through these stages—from subjective consciousness to objective social institutions and finally to absolute expressions in art, religion, and philosophy—it realizes itself over time.213

By linking ontology and epistemology, Hegel sought to demonstrate that the structure of thought is identical to the structure of reality, making the universe fundamentally intelligible to human reason.12