Guilt for not having been good to them 
Death of a spouse and sorrow. When we realize the fact that our spouses are dead, we fall into an deep sorrow. However, what is this sorrow about? It’s hard to admit, but we feel sorrowful about ourselves, who are feeling pain of loss. Of course, the heart of mourning for the dead is present. How can we not feel sorry about the death of our loved ones? However, the feeling that comes more strongly than the sympathy for the spouse is my pain. I feel sad about my loneliness and myself, who has to live alone without the spouse. The feeling of loss from the absence of a spouse, the economic hardship, and the guilt for not having been good to them, these are the pains that one has to endure.