I'm glad you mentioned Dr. Harrigan's work. I've been a meditator / siddha for almost 41 years. However, since the beginning, around the 3 month after initiation I started experiencing kriyas. Mostly, it's my right arm flopping around, but not limited to just that phenomenah. I'm able to keep them from being disruptive, so I am not a nuisance or freak in public or on a course. But, I've never have been able to get any real insight into it.
The one person I spoke to in the movement just had be practice asanas, thinking that might help. Not really. And I got the classic trope that it's just a sign of... wait for it... "unstressing". Whatever. To this day I just live with it and I actually avoid talking to anyone who is connected with the Movement. I want to keep my options open.
