Without boundaries there aren't healthy relationships, there are invasions, and one is either being invaded or invading another. Usually one's orientation towards enmeshment or separation is established at a young age through interaction with primary care givers.
Healthy relationships are supported by healthy boundaries, which the horses model. In human relationships, there is usually a tendency towards enmeshment or separation. The horses model a different perspective on boundaries that can be observed by how they interact with each other. The herd is very connected as they are continually communicating their needs and wants. It is rare to see a group of horses standing still for very long. They are constantly shifting and moving, while at the same time asking other horses to adjust as well. No horse experience necessary.