I never read the books, or watched the movies, but I know one thing:
As for de Prati, that's a heck of a good question that nobody's been able to answer yet. Gordon Cooper found de Prati's essays while searching for material on the solar and telluric currents; I was able to trace it back a little further into central European offshoots of Mesmerism; but from there? I have yet to find anything between de Prati and John Michell, who wrote about the solar and telluric currents in The View Over Atlantis. It's something I search for at intervals.
Re: Sparkly Vampire Humor, Germanish Afterlife, and the Solar and Telluric Currents
As for de Prati, that's a heck of a good question that nobody's been able to answer yet. Gordon Cooper found de Prati's essays while searching for material on the solar and telluric currents; I was able to trace it back a little further into central European offshoots of Mesmerism; but from there? I have yet to find anything between de Prati and John Michell, who wrote about the solar and telluric currents in The View Over Atlantis. It's something I search for at intervals.