Whether the dude actually existed or not, I think I could make a case for the "power of christ" as an archetype.
There is a lot of randomness in dreams, and the key to achieving reliable control over your dreams when in a lucid state is to use stable well defined archetypes. JC as an archetype, is incredibly stable and well defined, with few variations aside from the raptor riding variety.
Listening to Coast to Coast AM, you often hear of people who, when faced with a freaky situation invoke the name of Jesus out of sheer desperation even though they don't believe at all. And it works. I think there was an entire show dedicated to that topic.
The majority of those cases are alien abduction and demon type shit, even reportedly works against shadow people. The fact that the JC archetype always works so reliably even when faith isn't present leads me to believe that most of those instances occurred in some sort of dream state.
But even as a Satanist, you have to respect the potential influence the JC archetype has for control of your surroundings. Drop the J-bomb a few times around the right people and you can have them eating out of the palm of your hand.
And speaking of coast, if anyone is familiar with it, I think the frequent caller JC is actually Weird All Yankovic. The character's voices progresses over time like most cartoon characters do. Just find a weird all interview online and compare them.