What is one primary element of successful horse training according to the text?

Building a strong relationship with the horse is a primary element of successful horse training because the trust and bond between the trainer and the horse significantly influence the horse's responsiveness and willingness to learn. A positive relationship fosters an environment where the horse feels safe and secure, making it more likely to engage in training exercises enthusiastically. Effective communication, understanding the horse’s body language, and using positive reinforcement techniques are all part of this relationship-building process. This approach not only enhances the training experience but also promotes a lasting partnership between horse and trainer, which is essential for achieving long-term goals in horse training.