The attachment figure occupies a foundational position across the depth-psychology corpus, functioning simultaneously as a biological necessity, a psychological organizer, and a template for all subsequent intimate relating. Bowlby’s foundational formulation positions the attachment figure not as a gratifier of drives but as the irreducible terminus of an instinctual proximity-seeking system whose goal is protection and felt security. The corpus reveals several productive tensions. First, the question of hierarchy: Bowlby insists on monotropy — the primacy of a single, usually maternal, figure — while acknowledging a graduated hierarchy that includes fathers, grandparents, and caregivers. Second, the figure’s dual capacity as safe haven and potential threat generates the most clinically consequential literature: when the attachment figure is simultaneously the source of danger, the resulting disorganized pattern becomes a master template for trauma-related psychopathology. Third, the lifespan dimension is contested: Bowlby, Flores, and Levine converge in arguing that the need for an accessible attachment figure persists from cradle to grave, thereby challenging developmental models that treat attachment as phase-specific. The therapeutic relationship itself is reconceived as an attachment relationship, with the clinician functioning as a surrogate attachment figure. Ogden, Siegel, and Flores elaborate the somatic, neurological, and relational sequelae of early attachment figure availability or its absence, grounding the concept firmly within contemporary affective neuroscience.