Pic related is even more corroberation of "from darkness to light" is a masonic reference
I have never seen it but most horror films are nothing but a pretense to plug in symbolism and allegory.
The movie IT the 1990 original version focused on a clown that could enter the bodies of the townspeople. Not just anyone could be the clown they could not enter the bodies of the kids fighting the big spider. (It is Jabulon). So it was an allegory for the clowns in society. How you can buy a pack of cigarrets and when the casheir turns back to face you he is wearing a clown nose. There must be something that the cultists are a part of like a cult!