Our meditation group practices 'naturalistic mindfulness' without Buddhist metaphysics, but we keep having arguments about whether we're being authentic to contemplative tradition or just co-opting practices, and it's making everyone self-conscious during actual practice.
More people experience this than they realize.
You're so worried about doing it 'right' that you've forgotten the point is simply to do it.
“Where Are You with Scientific naturalism as spirituality?”
If this sounds familiar, the Library can help you find the bigger picture.