When is a Religious Belief Delusional?

[Amarok]

I say that triangularity would exist in potential even if the physical universe had never come into being to manifest objects that sentient organisms would recognize as triangular.  Is my belief in triangularity wrong or delusional?

It's conceptual. It's an abstraction. It (the concept of triangularity) is not wrong or delusional in itself. But clearly, if the physical universe had never come into being, there would be no triangularity at all, nor any potential for such. Not only would there be no one to conceive of abstracting the properties that we call 'triangular', there would be nothing to observe to abstract those properties from.  

Concepts require a conceiver.

Indeed the idea of triangles existing in some some magic platonic potential is nonsense some one needs to stop Freser credbilty he's not very bright