The MFY Three-Variable Steady-State Model: A Psychological Theory Natively Grown from a Pure Self-Healing Case Without External Intervention

MFY Three-Variable Steady-State Model: A Psychological Theory Natively Grown from a Pure Self-Healing Case Preprint Version: V2.1 Author: Bochen Yi Corresponding Author: Bochen Yi, E-mail: ybcbenxin@163.com Affiliation: Independent Researcher, Xi'an, Shaanxi Province 710016, China ORCID: 0009-0008-6242-7743 Funding: None Conflict of Interest Statement: All authors declare no conflicts of interest related to this work. Copyright License This preprint is licensed under the CC BY-NC-ND 4.0 International License. It permits global sharing and redistribution under the conditions of proper attribution, non-commercial use, and no modified derivatives of the original text. Special Authorization Statement: The author specifically authorizes any individual or institution to translate the full text or partial content of this paper into other languages. Translated versions must retain the core logic of the original text and clearly indicate the original source and author information. The full license text is available at: https://creativecommons.org/licenses/by-nc-nd/4.0/ Series Framework Overview This paper is the foundational work of the MFY theoretical system. Originating from ontological research in psychology, this system has been parallelly verified and extended in subsequent preprints. The overview of each paper is as follows: Paper 1 (This Paper): MFY Three-Variable Steady-State Model — Ontological Theory of Psychology Papers 2–8: General Framework for Steady-State Regulation of Complex Open Systems2; Underlying Mechanism of CBT-I Intervention Timing for Chronic Insomnia3; Ontological Definition of the Concept of Sacrifice4; Cross-Species Validation in Mammalian Behavior5; Full-Cycle Mechanism of Trust Emergence6; Causal Foundation and Temporal Directionality of Expectation7; Unified Framework of Economic Value Theory and Expectation Lock-in8 This navigation is provided for reader convenience only and does not affect the independent readability of each paper. Unified Ethical and Risk Warning This paper is an exploratory theoretical construction based on a single extreme case. All clinical mechanism explanations and intervention suggestions are testable hypotheses and do not constitute any clinical diagnosis, treatment, or psychological intervention guidance. Diagnosis and treatment of all psychological/mental disorders must be conducted by qualified professionals in formal medical institutions. The case described in this paper is an autonomous choice of the researcher under special personal circumstances and carries an extremely high risk of life safety. Any individual is strictly prohibited from imitating self-healing behavior without external intervention. Preprint Statement This is an unpeer-reviewed preprint and does not represent the final published academic conclusion. All core mechanisms and cross-scenario applications are heuristic analogies and testable hypotheses, not confirmed scientific conclusions. All conclusions in this paper are generated from a single extreme case, and their generalizability remains to be verified by subsequent large-sample, multi-center independent empirical studies. Abstract Objective: Based on an extreme case of comprehensive collapse and complete self-healing of an individual's mental system without any external professional intervention, this study constructs the MFY three-variable steady-state model, which can simultaneously explain daily internal friction, interpersonal defense dilemmas, and clinical psychopathological phenomena. It reveals the endogenous self-organizing repair law of the mental system and provides a testable solution for the operationalization of the self-actualization path in humanistic psychology. Methods: The First-Person Deep System Phenomenology method was adopted—a qualitative research method that uses the researcher's own highly sensitive nervous system as an observation instrument and excludes all external professional intervention variables throughout the process. Theoretical construction and system repair were completed synchronously during the researcher's 12-month full cycle of self-healing, strictly following the logical closed loop of "medical record evidence → law extraction → model abstraction → tool implementation". Results: (1) Three core variables—Anchor (M, Mao), Direction (F, Fang), and Expectation (Y, Yu)—were identified from the native experience of the case, and the first-principle hypothesis of the anchor was established; (2) The ontological steady-state closed loop of M→F→Y and the operational optimal adjustment path of M₁→F₁→Y→F₂→M₂ were clarified; (3) A derivative proposition on temporal causality was proposed: "The past does not directly determine the present; what the past determines is the expectation of the future"; (4) The MFY three-variable steady-state model and the M₁→F₁→Y→F₂→M₂ spiral iteration model were constructed; (5) The meta-intervention paradigm of "expectation 疏导 and reconstruction" was proposed; (6) Exploratory mechanism hypotheses based on the model were put forward for eating disorder rehabilitation dilemmas, military PTSD rehabilitation dilemmas, the happiness paradox, and appearance anxiety. Conclusion: This study provides scarce pure natural experimental evidence for the core axiom of humanistic psychology that "individuals are innately endowed with an endogenous tendency toward self-actualization", and transforms the abstract concept of self-actualization into a testable and operable middle-range theoretical framework. All conclusions are generated from a single extreme case, and their generalizability remains to be verified by subsequent large-sample, multi-center independent empirical studies.