Walter Cannon, a wise doctor, said a century ago that the human body attempts to maintain “homeostasis”, a condition of balance and wellness that will persist. The purpose of physical medicine and psychology is to provide external interventions when necessary to help the human being (the mind/body) to come back to homeostasis.
The ecology of a place, say in a forest undisturbed by human intervention, is in an equilibrium similar to the homeostasis of a person. There are thousands of interactions among different plants and animals, too complex to understand, that lead to the equilibrium. This is an example of “coherence”, as a friend has described, something that fits together and maintains a quality of being without any need to analyze it.