Abstract

This paper develops a stratified ontological and phenomenological reconstruction of mindfulness and mentalization within the broader framework of the Psychology of Belonging. While contemporary psychotherapy frequently treats these processes as foundational mechanisms of change, the paper argues that both are late-stage functions whose effectiveness depends on prior structural conditions. The argument is grounded in three principles: stratified reality (material, biological, institutional-social), dual temporality (synchronic structure and diachronic process), and imperfect belonging as the ontological condition of human existence. From this framework, psychological transformation cannot begin at the level of consciousness alone, since awareness and interpretation depend on relational stability. Belonging is introduced as a cross-level integrating structure articulated through affective, social, and existential pathways. From this, a six-step therapeutic sequence is derived, moving from material grounding and affect regulation to mindfulness and mentalization. The paper shows that these processes fail when applied prematurely and become transformative only when grounded in belonging. Psychological freedom emerges not from consciousness alone, but from the capacity to reorganize belonging across time.