Prayer is not sending in an order and expecting it to be fulfilled. Prayer is attuning yourself to the life of the world, to love, the force that moves the sun and the moon and the stars.
When I despair, I remember that all through history the ways of truth and love have always won. There have been tyrants, and murderers, and for a time they can seem invincible, but in the end they always fall. Think of it — always.