i have to assume that Paul—whom i suspect did not exist, fwiw—thought of religion as “of the world,”
It’s possible, it’s perhaps even probable!
All the same, I’d suggest giving due weight to the boring mainstream views— keeping in mind that people’s level of doing is often higher than their level of explaining. Meaning, that people have often hit upon a bridging solution, but their “reasons why” might be appallingly bad. Or in other words, “the public” is not wrong about everything. Crowdsourcing and all that.
Okay, “Paul’s letters” have been whittled down from 13 to 7. But that’s still a core of 7 letters written by the same person. If you think written style is that definite a thing. And I guess I kind of do. Of course it would be best to look at them in the Greek of 50 AD. And perhaps even the Greek of a certain specific area.
The light and the fainting on the road to Damascus sounds like an epilepsy seizure, although I really don’t know that much about seizures. But sounds like a real person. Maybe.