Acting out occupies a contested and multiply-valenced position across the depth-psychology corpus. Its classical psychoanalytic sense — behavior substituted for remembering, the discharge of unconscious tension through action rather than verbalization or reflection — receives explicit treatment in the group-therapy literature, where Flores distinguishes ‘acting out transference’ from displaced transference and warns against the term’s too-narrow application to mere antisocial aggression. Yalom, working within a group context, identifies acting out as behavior that ‘relieves inner tensions and avoids direct expression or exploration of feeling,’ while conceding the retrospective difficulty of distinguishing it from authentic therapeutic participation. Hillman, from an archetypal standpoint, reframes acting out as a ‘flight into activity’ that dodges psychological reflection, naming it a species of ‘manic hyperactivity’ that depth psychology rightly condemns, yet he insists the opposition between action and idea is not inherent. Levine connects the phenomenon to unresolved trauma: violence and compulsive re-enactment represent ‘repeated unsuccessful attempts to re-establish a sense of empowerment.’ The ACA literature extends the term into recovery discourse, treating compulsive self-reliance and sexual compulsivity as socially acceptable or hidden forms of acting out rooted in developmental trauma. Across these registers, the central tension is between acting out as pathological avoidance of interiority and acting out as an encoded, if distorted, communication of unmet need.