We see the face of God daily, easily recognizable in a spectacular sunset or in a child's smile. And it also exists in less attractive presentations. Can we accept seeing God in the person of our "enemy"? If we can't, we are doomed to propagating lives of hatred and revenge. Only when we see the face of God in everyone and in all things will we be at peace within ourselves and, more importantly, enable peace to exist throughout the world.
Spiritual growth is achieved with passion, difficulty, and intensity as much as it is achieved by peace, silence, and love.