It is their energy we have stolen. Most people go through their lives in a constant hunt for someone else's energy. Occasionally it works differently. It makes us feel empowered, but you'll see that this gift doesn't usually last. That's why most relationships eventually turn into power struggles.
Humans link up energy and then fight over who is going to control it.
And the loser always pays the price. The Third Insight showed you that the physical world is actually a vast system of energy. It's the result of feeling insecure and weak and having to steal someone else's energy to feel okay. The only reason that any conflict can't be immediately settled is that one side is holding on to an irrational position, for energy purposes.