I agree Stringsinger.

Beliefs, (aka spirituality) even when associated elements are held broadly, tend to be a personal experience and are difficult to define, confirm or refute through traditional avenues.

For example, how would one confirm, or refute a person's personal belief that their partner is beautiful? One could put forward significant data with broad definitions of beauty - but would that register with (or even matter to) the person holding that belief? I suspect not, as it is a personal belief.

IMO, it is much easier to focus on what makes up a religious organization. But, is that what actually defines the god (spiritual) belief? I suspect not. People leave religious organizations, but I doubt that that ends the belief itself in the persons make-up. One could also present oodles of science doubt, that likely would have the same impact.