I was thinking about this post yesterday while I was riding and had to think that not only is, "every rider a trainer" but also that "every rider is being trained" every time you interact with a horse. I think it is important that people are in a learning and teaching mode when riding horses. But it also takes time and experience to know what you should be learning. Horse trainers are invaluable for the horse, and for the rider. Too often people think that horse trainers are only for horses, when in reality the rider is the one who needs to be trained.
When you are sitting a top a horse, you are that much closer to God.