I've had this idea sitting in my brain for awhile, but haven't done much with it. I'm not even sure how to properly articulate it. My understanding of the Chinese religious tradition (Buddhism notwithstanding), is that for the most part official society was based on a largely but not entirely secular philosophical tradition based largely on Confucianism plus the cannibalized remnants of Legalism. However, while this was the official religion, it coexisted with a much more mystical, personal Taoistic tradition. The idea was that a gentleman would be a perfect Confucian throughout his career, and then after retirement devote himself to Taoist musings.
Now, the East has been more open to this kind of syncretic situation compared to the West, but would it be impossible to recreate something along these lines using Western traditions. I'm thinking of a society largely based on a dominant school of mostly-but-not-entirely-secular Greek thought that provides cohesion and stability, but with a corresponding mystical tradition derived from the Abrahamic tradition that provides necessary existential comfort and satisfies the desire for transcendence. Sort of like, society built on Plato (or whoever), but a religious inner life in that society revolving around Jesus (or whoever).
Is the Abrahamic tradition too volatile for this? Would it be easier to have this kind of symbiotic dichotomy develop from purely Greek mysticism instead?