Grief (novel)
During the course of the novel, the ideas of the stages of grief are introduced. The stages are denial, anger, depression, and acceptance. The narrator, as well as other characters in the story, slowly passes through these stages in trying to deal with death.
GROW
GROW's literature includes the Twelve Stages of Decline, which indicate that emotional illness begins with self-centeredness, and the Twelve Steps of Personal Growth, a blend of AA's Twelve Steps and will-training methods from Recovery International. GROW members view recovery as an ongoing life process rather than an outcome and are expected to continue following the Steps after completing them in order to maintain their mental health. 
The Twelve Stages of Decline