Wow, this article is packed full of more interesting connections, and I'm not sure if this has been posted because this was the first I've heard of it:

The NXIVM/JZ KNIGHT Connection

Earlier Thursday, former NXIVM senior member Mark Vicente completed his five days of testimony by reluctantly admitting he once belonged to another spiritual organization — and believed its leader had been channeling the spirit of an ancient warrior.

Vicente admitted under cross-examination he had belonged to the Ramtha School of Enlightenment between 1994 and 2004. "It was a body of knowledge," Vicente said.

When Raniere's attorney, Marc Agnifilo, began to probe the subject of Ramtha, Vicente said he was not sure how much he could say — an apparent reference to litigation between himself and the group, which is based in the state of Washington.

"Did you believe that (Ramtha founder) J.Z. Knight was channeling a 35,000-year-old warrior?" Agnifilo asked Vicente.

"For a few years," Vicente responded.

Asked if there was any evidence to back that theory up, Vicente replied that "there was evidence" in the form of scientific testing.

He said Ramtha's leader turned on him when he made a documentary, "What the Bleep Do We Know!?," that dealt with group.

https://www.timesunion.com/news/article/NXIVM-13851004.php