Toward Ecosophy

Not necessarily occultists, but Ron Hale-Evans explicitly wrote Mind Performance Hacks as a "how to become a Mentat" guide, and I found a pdf manual years back on "How to Become a Bene Gesserit" (from my skim, it seemed mostly to be a combination of stuff claiming to be ninjitsu and practical psychology), so such efforts may be even closer still!

Jeff