This isn't so strange as some people have a flip attitude to what they were before and attack it as a position of compensation. Francis of Assisi had this about wealth and pleasure, and perhaps St. Augustine. I'm not so sure these days but there were Westerners who dropped their culture to take on an Eastern style of living and would vehemently decry their old lifestyle.
Absolutely - the psychological attitudes involved in religious conversion do seem to follow a familiar pattern. And, psychologically speaking, there is another factor involved in the subsequent development of Christianity which might interest Owlswing. I've stated that I believe St Paul invented another form of the familiar pagan religions which centred around dying and resurrecting gods, such as Osiris, Attis and Orpheus, and this was eventually incorporated into the other strand of early "Christianity" which was much closer to Jewish teachings. As the emergent proto-orthodox Christianity began to be consolidated, it soon started to attack pagan belief systems as part of its campaign to assert that it alone possessed the truth. This continued throughout history in its notorious 'witch-hunts'. The reason for this, I suggest, was in part because it recognised that so much of its own belief system was so similar to these pagan beliefs - so much so in fact that it had to suggest that these similarites were the deceptions of the Devil,
prepared well in advance of the advent of Jesus. This kind of psychologically deranged thinking was carried over into the New World, where the Spaniards noticed the remarkable similarities in belief to their own that the Aztecs held.
And, of course, the Jews also became pariahs because they also adhered to some of the other teachings which went to make up emerging Christianity - but were accused of not having lived up to these teachings, or misinterpreted them.
And I forgot to say that the manner of his conversion implies a fit of some sort and we know how a persons personality can change from such events.
Again, I agree. And we also know from scientific studies of certain conditions such as temporal lobe epilepsy and severe migraines, how a person's perception of reality can markedly change under the influence of such conditions. Dostoevsky and Hildegard of Bingen come to mind. To be fair, I have to ask whether their perceptions
might have been a glimpse of some kind of 'higher reality', but these days I'm very inclined to doubt it.