It is all connected This is such a great visual example of the "strings" I often talk about throughout the horse's body.
The trickle-down effect of how one body part influences another, even if literally at the other end of the horse.
I've used the analogy of the string on a dog food back, where you start pulling one end, and the whole thing become unraveled.
I find when people tell me about a horse that is heavy on the bit, resistant in the backing, have difficulting holding a canter or lope lead, etc. that they are other factors contributing to the unwanted physical behaviors.
Example: I talk about when there is a heaviness in the horse pushing on the halter or bridle, and noticing and addressing unlocking the physical brace- or locked up feeling- in the horse's hocks, students are shocked.
This image is a great demonstration of that. Learning to help each body part then influences the quality of the overall movement and softness of the horse, which of course starts with his mind first.
PC: The Equine Documentalist