Its "explanations" were codified and drew an increasing number of 'believers' and is now a full blown religion.
Are any other "religions" amenable to the purchase of higher, more exalted status by their believers?
Circa 1971, I was accosted by a gaggle of young "suits" from the Scientology recruitment department. I reluctantly agreed to let them hook me up to one of their meters. Then, to demonstrate the complete an utter lack of control I had over my own body responses, they had me pinch myself to where it caused pain. The needle moved... about halfway round the dial.
Then they asked me to simply recall the pain of the pinch, and again - the needle moved (a little). That was their "aha" moment;
"SEE? you have NO control over how you respond!"
I didn't take well to that assertion. I had read enough Gurdjieff and Ouspensky and practiced enough meditation to know exactly what that meter was registering, and so challenged them.
"Bullshit! You want to see me make that needle move without doing anything?"
That got their attention. I summoned a surge of electrical impulse to the hand that had the electrodes on it, and WHAM! that needle pegged hard. The little penguins backed away in horror. I stood up, removed the electrodes and walked out, as they cowered away from me...