Of course what makes or causes these spiritual experiences is a moot point. I think someone with a scientific worldview will dismiss it as not relevant and perhaps being part of some wish fulfilment. Someone growing up in a religious comunity - whose culture is heavily influenced by it - may interpret it in one way. others who wish to break from that tradition may interpret it in terms of an alternative religion. Other seekers perhaps look to new age theories.
Our response is interesting. Does it depend upon some shared community view, is it actually an external religious influence, or does it arise solely within the individual based upon their developed delusions? What does the multitude of different religious traditions mean for what are often similar "spiritual" experiences?
But they can't be dismissed, as they inspire peope different ways, and often to great works. Whatever your view of them, the reality is that there are an awful lot of religious people who use them to add meaning to their lives. Some of them may be intolerant, but will you meet intolerance with intolerance? I think open mindedness is a healthy attitude, because who could claim to know the whole truth of it yet?