"Religious philosophy" is what I put down as my "interests" in my profile. It is not "philosophy of religion". The term is a generalization of "Christian philosophy" (as used in the opening chapter of Gilson's The Spirit of Medieval Philosophy), or "Buddhist philosophy", etc. That is, it is philosophizing from a religious perspective, or "faith seeking understanding". But, it may be objected, there can be no such thing as a general religious philosophy, since the faith of one religion is different from that of another. To this I respond that I think of myself as religious, but since I am not a practitioner of one or the other of these more or less established faiths, I have no choice but to, in effect, define my own religion, though of course drawing on the wisdom of the established faiths. As I see it, this is one way of responding to the problem raised, for example, in Peter Berger's The Heretical Imperative. We live in pluralist society, and if I am unable to bring myself to, say, choosing some Christian denomination, or some Oriental tradition, then this is the only way forward for me -- given that I reject the agnostic option.
William James characterized religion (in Varieties of Religious Experience) as (my paraphrase)
1. Acknowledging that there is something fundamentally wrong with me, and
2. Seeing the fix for that wrongness in reconnecting to something transcendent.
What I shall be doing in these posts is taking that characterization as a definition of religion. (By "definition", by the way, I only mean to indicate that when I define X, that this is how I shall be using the word 'X'. Others may use it in other ways, which is ok as long as one is aware of the different usages.) And what I see myself as doing is carrying out a religious experiment. Could it be that -- now that modernism is failing, yet there are good reasons to not fall back into a pre-modern monocultural form of religious practice, that the time for "being a Christian (or whatever) is passing? To be clear, I do not think it is wrong to belong to a religious tradition (on the other hand, I do think it is wrong to be without religion altogether), so the experiment is to see if being religious without signing up for a particular tradition works out. Not that I expect anything conclusive to come of it.