Energy flowing through a system tends to organize it . The initial energy flow, and the associated feedback, follows the path of least resistance defined by the structure, and attempts to create a path of even lesser resistance. Behavior influences structure . People always, always, always do exactly what makes the most amount of sense to them . People have to act in a manner which represents the path of least resistance.
People habituate .
The habit is the result of patterns, or structure, created by previous activity, i.e., energy flows. Now its time to return to the diagram on the right. If they didn't believe this they wouldn't undertake the activity. Their mental models, in conjunction with the structure in which they operate, and their perception of the current state prompt them to define the desired state. This desired state represents the path of least resistance for them.