If you want to live on purpose, then you must discover what it is, learn how to do it and it will reveal what it means to you all along the way.
The end of war is simple. Whenever we listen to hear and understand another person, their defenses dissolve. Their anger dissipates, their sadness subsides. The same happens when you listen to hear and understand yourself as well.
The process of dissolving the Ego is increasing Awareness, Admitting and Accepting. This is accepting the ego itself and the fear based beliefs and behaviors that make it up.
The more you stand in the Light of the truth as who you are in Love, the more you also see fear and shadows in the truth of what they are.