I am currently reading Patricia H. Livingston's book, Let in the Light. In her chapter, "Light for Each Other," she reflects on how "light can come to us from our loved ones who have died." She quotes the theologian Karl Rahner who wrote:
The great and sad mistake of many people...is to imagine that those whom death has taken, leave us. They do not leave us. They remain! Where are they? In the darkness? Oh, no! It is we who are in darkness. We do not see them, but they see us. Their eyes, radiant with glory, are fixed upon our eyes...Oh, infinite consolation! Though invisible to us, our dead are not absent...They are living near us, transfigured...into light, into power, into love.
What a beautiful reflection for this month of November, when we traditionally remember those who have gone before us to be with God.
(Livingston, Patricia H. Let in the Light. Notre Dame, IN: Sorin Books, 2006)