The “great divide” in religious philosophy (and maybe metaphysics generally) is between dualism and non-dualism. Some other divides seem to follow this one generally. One is that between exclusivists and non-exclusivists (my preferred terms).* One might be a non-exclusivist who—for aesthetic or cultural reasons, perhaps—expresses herself generally in Christian terms. The same can be said for others. Some of us express ourselves, now in terms of this, now in terms of that.
One can come to a non-exclusivist position from different religious views. It does, as I said, seem to follow the stream of non-dualism—a stream which can be found in virtually every religious expression.
I grew up Christian, and remained Christian (even as, eventually, a non-exclusivist, non-dualist) until the age of about 40 or so. That was my inherited and preferred expression within non-dualism (think, perhaps, Meister Eckhart or Gregory of Nyssa). I discovered, however, that most “orthodox” Christians (from, however, a whole range of putative “orthodoxies”, that mutually condemned one another) did not think that I was Christian at all (not a “True Christian™”, as we say on here); and I frankly do not need the labels anymore. I might express myself in Zen terms, or Vedantic terms, or neo-Hasidic Jewish terms, or Christian terms, or Sufi terms . . . And I am unlikely to be “orthodox” in any of them.** But that all means that I can’t simply dismiss Christian expressions of the non-dualist/non-exclusivist stream either. I still read Gregory of Nyssa—as well as Fakhrudin Iraqi, as well as . . .
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*Other terms that people use might be particularist/universalist, exclusivist/inclusivist, exoteric/esoteric (Fritjoff Schuon), or discontinuous/continous (Antonio T. de Nicolas). They all might have somewhat different shades of meaning.
** At least when "orthodoxy" implies exclusivism.