I got interested in Centered Riding through the Feldenkrais method.  Centered Riding is the main application that I really like from Feldenkrais Theory (Sally Swift mainly used Alexander Theory, but it's pretty similar stuff.)  I like the awareness-building best through the lens of the horse.  It's a lot easier to build the awareness in yourself if you're able to read the horse's reactions, they don't fool you the way a mirror will.

I took a Centered/Connected Riding clinic last month and have another one this week.  The big revelation last month was decoupling my hips at the trot.  It seems so simple once it is pointed out, but I would never have figured it out on my own so elegantly. 

Once I took a formal Centered Riding clinic, I realized that the instructors I liked most and learned the most from were using the same principles, if not by name.