Perhaps the most well-known model for understanding grief was developed by Elisabeth Kübler-Ross, MD, in her 1969 book titled On Death and Dying. The five stages of the grief cycle that she outlined are
denial,
anger,
bargaining,
depression,
acceptance.
She described the stage of denial as the bereaved having difficulty believing what has happened, the anger phase as the survivor questioning the fairness of the loss, the bargaining stage as wishing to make a deal with fate to gain more time with the one who was lost, the depression stage as the period when the bereaved person gets in touch with how very sad they are about losing their loved one, and acceptance as feeling some resolution to their grief and more ability to go on with their own life.
Kübler-Ross apparently felt these phases can be applied to any significant personal loss (for example, of a job, relationship, one's own health, anticipating one's own death), as well as the death of a loved one. It also seems that she believed these stages don't all have to occur, can take place in different order, and can reoccur many times as part of an individual's specific grief process. Other grief experts describe seven stages of grieving, specifically
shock or disbelief,
denial,
bargaining,
guilt,
anger,
depression,
acceptance/hope.
The shock or disbelief stage is understood as the numbness often associated with initially receiving the news of the death of a loved one. The guilt stage of grief refers to feelings of regret about difficult aspects of the relationship with the deceased.