Behind the symbolic forms of any person’s “religion” is something much deeper, a religion-behind-the-religion which cannot be spoken about in any direct way but which can be effectively summoned, concentrated, evoked, extended, intensified and hopefully shared through religious forms — through performing, plastic and social arts.
My religion is Reform Judaism, but my religion-behind-the-religion is radical liberalism, which I believe grew out of Judaism, and in fact developed from the unceasing active reforming of the tradition.
Some people sneer at liberal religions, and view them as watered-down, lukewarm, modernistically-compromised versions of religion in pure form. From the perspective of the religion-behind-the-religion called Fundamentalism and its antithetical opposite Atheism, it is impossible to see liberal religions any other way than dilutions of pure religion, but from the perspective of religious liberalism, religion reduced to its forms and to passions about those forms has ceased to live as real religion and has devolved into something more about beliefs than relationships with God.