Subject: Re: As this is the Atheist forum...
Light is purely (so far as we know) physical. It exhibits both particle and wave behavior, but neither is metaphysical.
He doesn't know what he's talking about. But then most religious pundits don't.

Are you sure, taking into account that even - or rather especially - physicists are using not exactly mathematical terms like "more and more esoteric" for modern interpretations of quantum mechanics that came after the classical Copenhagen interpretation?