My personal understanding of how these cords impact us comes from Creator. I've spent many hours working with karmic energy.
When you connect with other people, places and things you create patterns. They become crystallized cords made of of thin threads over a time period. These cords look like ropes. Some cords are thicker than others, indicating intensity.
Having karmic cords with someone is neither good nor bad. It means you have prior experiences with that person.
Clearing karmic cords clears energy between people. Life is in the present, rather than the past.
Objects, events and businesses can also have karmic cords. (Particularly if inherited.) You don't need to know details, just clear them.
People notice feeling lighter, freedom and more energy or relief.
