Look all things happen in this world. They just happen. You cannot change the course of events, but you change your attitude and what really matters is the attitude and not the bare events. The world is the abode of desires and fears. You cannot find peace in it. For peace you must go beyond the world.

The root cause of the world is self-love. Because of it we seek pleasure and avoid pain. Replace self love by love of the Self and the picture changes.