Yin-Yang/ Shakti-Shiva

The principle says the absolute maximum of any entity or form is the beginning of its complementing entity or form. Utmost ruthlessness is the grounded in being right which in turn is rooted in being selfless. That is where the compassion begins. Similarly when two opponents are fighting and if they are skilled; even though the fight is most violent, it transforms itself in to the most harmonious exhibition of skill ie; a dance. I think you would see this the picturization of the fight between Hector and Achillies in the movie Troy.