>>717792961
>Don't really think there's a definitive answer anon
There are. Official and documented.
The town's region is known to be "spiritually strong", with a natural power the natives used in their rituals, and the pioneer Christians that settled in would later adapt.
SH1 has one alpha projection, Alessa's, who was clearly influenced by said power since birth.
2 is an aftermath of 1, with the entire region's power being sort of cracked, running on auto-pilot. This' why there's multiple micro-projections going on at once, often merging and influencing one another.
3 goes back to 1, and SH4 is another case of external alpha projection consuming all, further solidifying the "someone's nightmarish delusions come alive" statement.