A horse’s brain is about a third the weight and size of ours. They aren’t stupid, just highly specialized for movement. Our priorities are not their priorities. They can’t see things from our point of view, and can never think like we do. It’s up to us to provide what they need and speak their language. They don’t care about our goals or the discipline we ride. They care about their balance, and their sense of security. If you can’t provide those things, our goals to them are meaningless, and something they will actively resist to take care of themselves.