Few concepts have insinuated themselves into the popular culture as thoroughly as the so called "5 Stages of Grief": Denial, Anger, Bargaining, Depression, Acceptance. We've heard it from professionals in all areas of the healthcare system (who should know better) as well as from lay persons of all ages (who shouldn't). There is even a lengthy comedy routine about it by Dustin Hoffman playing Lenny Bruce in the movie Lenny. The time has now come to ditch it as the concept has done more harm than good.
It was mentioned above that Grieving only begins where the 5 Stages of "Grief" leave off. Grief professionals often use the concept of "Grief Work" to help the bereaved through grief resolution. One common definition of Grief Work is summarized by the acronym TEAR:
T = To accept the reality of the loss
E = Experience the pain of the loss
A = Adjust to the new environment without the lost object
R = Reinvest in the new reality