This chapter will focus on the role of efficacy and agency selfobject experiences in the prevention of suicide. Selfobject experiences mostly have in common that they refer to the self as recipient of some action of the selfobject. Wolf (1988) described another kind of phenomena that proceed in the opposite direction, that is, phenomena characterized by the self as actor and the selfobject as acted upon. The essence of these phenomena is the self's experience of being an effective agent in influencing the object that Wolf defined as efficacy experiences. Exploring the self-state of suicidal patients, the therapist is confronted with their loss of agency in a state of despair and deep feelings of helplessness. When suicidal patients experience being an effective agent in influencing the object, their selves become more cohesive and the