Synergy is the energy exchanged between people, most often to bring about a positive change. Winning sports teams have synergy; each player’s individual energy sparks their teammates to do better.
Comedians get funnier when the audience is engaged and spends the show laughing. Singers’ voices elevate with a standing ovation. Yet, synergy can also work in the other direction. If someone is vengeful, they usually initiate a string of revenge that builds into a lot of negative energy. It goes back to the saying “two wrongs don’t make a right.” Those two “wrongs” just make more wrongs… and result in more negative energy.