People often confuse loneliness with isolation. When pressed, most people struggle with the difference. There are three levels of isolation. They are:
People are physically separated or have minimal contact with others.
People interact on a more personal level i.e. the workplace. There is a familiarity, maybe even some affection, and a common goal they share. This is also experienced in social groups, and community activities.
There is real bonding and a connectedness that expresses deep love and commitment. That sense of acceptance is what all of us need as young children in order to feel whole. Most of us, however, missed that critical piece from our parents when we were young children and spend a life time yearning for it without identifying it.