True, but there's a fine line between intuition and delusion. A person can believe something so strongly, that for them, that thing becomes 'real', but it's only in their mind.
As a long time seeker of personal enlightenment, I can say that I'm very familiar with this phenomenon, so I don't just discount the spiritual realities of others. Just because I can't perceive a thing does not mean it doesn't exist. It just means that I'm incapable of seeing it, or it doesn't exist. I'm willing to allow for either reality, but I can only operate on that which is real to me.
Now, there are also those things which I feel I comfortably know, and which I have great certainty on. Some of those things are outside the norm of everyday 'beliefs', and are part of what we might call the spiritual realm. I *know* these things because I can perceive or communicate with them in some tangible way, even though many others can't.
In the same vein, there are some *truths* that others hold as real, that I'm not capable of perceiving or communicating with. For me, those things are not real, and I won't accept them just because another person claims to have deeper insight or powers of perception than I do.