Final answer:
Erikson's psychosocial theory of development includes the integrity vs. despair stage. Achieving integrity involves reflective satisfaction with one's life, while despair emerges from unresolved life challenges. This has implications for one's preparation for death and overall well-being.
Step-by-step explanation:
The concept you're referring to is part of Erik Erikson's psychosocial theory of development, which includes the phase of integrity versus despair. For Erikson, achieving integrity is essential to help prepare for death. It involves reflecting on one's life and feeling a sense of satisfaction and accomplishment, whereas despair is experienced by those who feel they have not successfully resolved the life challenges delineated in Erikson's stages. Researchers often propose a connection between these end-of-life reflections and psychological well-being.