Every emotion must be able to use every other emotion. The great energy source is anger, but it needs to be channelled through the other emotions. Exhilaration is worth nothing if it cannot use anger. All emotions need each other. Emotion is one dimension of ability.
Energy is another dimension.
Both are required. Any energy flow or emotion must be able to use any other energy flow or emotion. I synthesise synthesis. I synthesise energy. I synthesise exhilaration.