There's a western meditation guy named "Daniel Ingram" who I have a certain amount of respect for. He readily answers questions about the risks and benefits of meditation-related things as well as the subjective experience of them. But any time he is asked about the "real world" (like, the metaphysical implications of these experiences), he responds that he's "a pragmatist" and won't speculate about the nature of reality or the existence/nonexistence of entities or powers.

(That said, there is one and only one story he tells that seems to have made him believe certain supernatural claims about the real world. He was "practicing magic" and drew an amber pentagram in the air and someone who hadn't been present at the time later walked into the room and said "you just drew an amber pentagram in the air right here." Or at least that's roughly how he tells the story. And he does seem to believe there's something to that beyond the natural.)

I'm not quite the purist he is. I don't think it's necessary to straight up refuse to believe anything about the real world or the nature of reality. And I don't think that there's nothing that can/should be gleaned about metaphysics from subjective ("religious") experiences. (My experiences with contemplative practices has definitely changed my mind about some metaphysical things. The nature of conscious and of reality, the existence of capital-G-"God" (though the answer I find most compelling now definitely isn't "yes" or "no"), etc.)

But it's also important to keep it in perspective. Some of these experiences can feel like the most important thing every to happen to anyone. (That's probably how many/most religions start, honestly. Someone has a mind-blowing experience and tells everybody about it and everybody else grossly misinterprets it because these experiences are ineffable -- can't be put into words -- and before you know it you have the crusades and witch burnings and abstinance-only sex ed.) But a contemplative practice, done well, will tell you not to hold too closely to, well, anything really (potentially "except god"). Coming to some belief and holding it as the most important thing ever or basing your whole personality on it is absolutely problematic.

My advice is to hold any beliefs you come to from a religious experience (and any other beliefs you have for that matter) "loosely". And I think this is helped by not restricting yourself to one religious system. Borrow from both western and eastern religious traditions. Monotheistic, pantheistic, pagan, etc. Indigenous spiritual practices. Even left-hand-path stuff. The more you do that, the better you drive home to your reptilian brain the point that nobody has a monopoly on religious experience and often those experiences even contradict each other.

I guess one other thing to mention is that adpting a particular set of religious beliefs can potentially be a boon to one's contemplative practice. But for the reasons above, it can be dangerous.