The fence acts as a physical reminder of where the different properties start and stop.
At work, you might have cubicle walls or an office that define your work space from that of your colleagues. Relationships need boundaries All healthy relationships have boundaries.
This is exactly what many therapists do in couples’ counseling: attempt to help each partner honestly own their part in the problems they are having and work toward healing.
So, clear boundary lines help you determine where you start and where you stop.
Another way of saying this: boundaries distinguish what is your responsibility in the relationship from that of your partner’s.