Everything is spiritual, if you see some spiritual dimension to it. That's because spiritual is something created by the human mind. A sunset, a pebbly beach, a waterfall, the song of birds, the colours of a film of oil on water, another human's words, a beautiful machine....

The fact that it's explicable in other terms doesn't take away any spirituality. Don't get spirit (the human response to the world) mixed up with magic. And don't make the mistake that just because something has meanings to some people, it shouldn't be touched in other ways.

The Christian or Cherokee creation myths are full of meanings to Cherokees or Christians. That doesn't have any impact on geology or palaeontology, unless they try to claim that, since they have "explained" the world, it's wrong for other people to look for other (better IMHO) explanations.

I suppose the real danger point is when people mix up a metaphor or analogy with a real description.