Thnetopsychism, from the Greek thnētós ("mortal") and psūkhḗ ("soul"), is a view in Christian theology according to which death means the complete extinction of the human being, with no continuation of an immortal substance independent of bodily existence. The human being is therefore understood as an indivisible unity of body, soul, and spirit; with death, their existence ends entirely. The resurrection of the dead on the Last Day is understood as a complete re-creation of the human being through God's creative power—not as a revivification of a pre-existing core of the soul.