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.
When we're old, our lives become the sum of all whom we have loved. It is important not to waste anyone. One task of living out the last half of life is excavating and recovering all of those whom we loved the first half. Thus, the recovery of lost loves becomes an important way in which the past affects the present.