Abstract
Death-related thought can shape emotional responses, meaning-making, health decisions, and social responses to loss. Mortality-salience research has made death-related cognition experimentally testable. Yet a mortality-salience induction does not establish that a person has reflected on death in a sustained or personally consequential way. We propose a Four-Level Model of Existential Reflection. The model distinguishes reflecting upon personal finitude, shared human finitude, the finitude of living beings, and cosmic finitude. These levels identify different objects of thought, not a universal developmental sequence. People may engage with one or more levels in different orders. Culture, spirituality, scientific worldviews, relationships, and life circumstances shape the felt significance of these forms of reflection. The model generates hypotheses about long-term-perspective activities, death-thought accessibility (DTA), movement among levels, and their psychological consequences. It links laboratory mortality-salience research with lived experiences of death, care, meaning, and growth.