While I'm so rusty these days, I did at one time pay attention. I've read Ouspensky, Blavatsky, and the rest of the Theosophists, but far more importantly, only as an aside, along with ALL the much more important traditionals of the East and the West.
The thing that changed me most, however, was the day I finally read Proverbs with an open eye. When I realized that that wisdom had been in a little white book in my mother's bedroom drawer all those years I was chasing my sad little tail around this planet in search of truth, I was humbled beyond words. Not that she ever took it out, but that it was THERE, representing my heritage and link to the West. One thing led to another, and....well, you've read Original Sin.
Don't know if that means much, but it's genuine.
Best regards, Coyote.