Naturally intimidating to many, horses are large and powerful. This creates a natural opportunity for some to overcome fear and develop confidence. Working alongside a horse, in spite of those fears, creates confidence and provides wonderful insight when dealing with other intimidating and challenging situations in life.
Like humans, horses are social animals, with defined roles within their herds. They would rather be with their peers. They have distinct personalities, attitudes and moods; an approach that works with one horse won’t necessarily work with another. At times, they seem stubborn and defiant. They like to have fun. In other words, horses provide vast opportunities for metaphorical learning, an effective technique when working with even the most challenging individuals or groups.
Horses require us to work, whether in caring for them or working with them. In an era when immediate gratification and the "easy way" are the norm, horses require people to be engaged in physical and mental work to be successful, a valuable lesson in all aspects of life.
Most importantly, horses mirror human body language. Many complain, "This horse is stubborn. That horse doesn't like me," etc. The lesson is that if they change themselves, the horses respond differently. Horses are honest, which makes them especially powerful messengers.