Relationships do add chaos, unknowns or situations that are outside of an individual's control, though still within the control of the group. From an individual perspective, relationships do add chaos. No single individual necessarily is in total control, though as a group they can remain in control. When people get into the same car, or in the same aircraft, or on the same boat, then to a degree they can become like one vehicle. I can cook a recipe that I know, a recipe given to me, the food that I like, or the food that someone else likes. I can let someone else cook, or ask them to cook a recipe that they have yet to learn. There is a lot of variety and chaos in relationships. Of what you say about chaos and harmony is not surprising to me. There is an element of inward control, outward control, and an element that is not within any individual's control. I would relate to it this way: there is individual responsibility, and there is a group responsibility. As a member of any group, it becomes valuable to be seeking agreement as to who is responsible for what. A degree of individual chaos becomes acceptable and valuable, towards the value of relationships.