I've just finished listening to the Holy Relationships workshop, the Q&A portion. Aaron briefly mentions that people with higher energy levels can transfer their higher energy level to people with lower energy level through sexual intimacy.
I immediately thought of the gurus, like Choudhury and Jois (there are many others) who sexually exploited their students (mostly women), probably with this type of teaching. It's not hard to see how vulnerable, young, naive women - especially in the 70's and 80's - could have been taken in by gurus who used kundalini and tantric teachings to satisfy their own needs, as well as have power and control over others.
I sure hope guru worship is a thing of the past! They're just people, after all. Nothing here to worship.