Perhaps it's your personal definition/understanding of the word spirituality.
I must, of course, consider that possibilty.
Rather, though, I'm speaking to the unknowabilities of human nature, such that I, on the one hand, am convinced of what I "know," but on the other hand need to consider that "what I know" is not knowable at all.
There's where I believe (have experienced) that the interpretation of "spirituality" comes into play: I must find a way to compartmentalize and categorize such experiences, and, for lack of a better term, have been inclined to define (internally identify) such experiences as 'spiritual.'
However, in my best current attempt to be objective, I must freely admit that such attempts on my part are nothing less than subjective.
And thus we get back to the notion of "spirituality?"