Then at the bottom you see the emergence of the third generation. All of the relationships prior impact the parents and thus the children.
Now go back to the top. As each layer of the diagram develops my wife and my relationship, our roles, our relationship with each of our kids changes.
To complicate this further I could extend the diagram to the generations that created my wife and I. Those relationships continue to play a part in our interaction with each other, our children, and everyone else on the diagram.
There are only two constants in the last 36 years. One is the continual change that this represents. The other is our relationship with Christ. (My wife pointed out a third, our commitment to each other.)
It occurs to me that navigating life – just from the standpoint of surviving a family – I would not want to do that apart from the one who created us.