What we call, or don't call, spiritual, or spirituality is all about the definition. Those are two of the most slippery words in the English language, which is why earlier I asked for a definition....
If your definition requires a supernatural element, then I see no evidence to support a belief in it. If not, then we have room for discussion.
How else would one define it, since the spirit is something unprovable and not observable by scientific means, and is the root word of the above concepts?
Again, not a rhetorical question. How do you define spirit without touching upon the supernatural?
