Actually this one seemed to be pretty open. I don't get the impression its a mystery pyramid scheme. Just... Weird. And wrong. They think Jesus and Mary Magdelene taught tantric sex.

In its simplest form, there's nothing wrong with the occult. That just means hidden. "A cloud occulted the sun." - is a perfectly reasonable sentence. So just being a scientist is being an occultist. It does go off the rails with cults, though, because a cult oftentimes becomes a psychopath's little captive group which they feed off of in some way.