Sartre’s trinity dialectic of the structure of being (the “existing,” the “lacking,” and the “lacked”) is developed and extended into the realms of “death-of-others,” “my death” (suicide), and “being-unto-death.” Two possibilities of suicide emerge from the author’s explorations of being and the meaning of life: 1) the break-down, or “threat to one’s projects,” and 2) the emptiness of one’s self, or lack of being (God). It is argued that the suicide project is the last desperate, yet futile attempt to affirm one’s freedom to be; futile because it destroys one’s existence, which is the necessary but not sufficient condition for being. (10 refs)