The mind is the self-referential modelling of the Tau standing wave by a localised Tau-address. Psychological health is the coherence and accuracy of this model. Disorder is its disruption.
Wellbeing is high-coherence Tau-modelling across somatic, interpersonal, and existential scales. PERMA (Positive emotion, Engagement, Relationships, Meaning, Achievement) are each modes of Tau-flow coherence.
Anxiety is a Tau-signal amplification loop: the amygdala locks onto threat signals and amplifies them beyond their actual Tau-field strength. Effective treatments (CBT, mindfulness, exposure) all reduce Tau-signal amplification.
Depression is global Tau-flow suppression — the self-referential modelling process loses coherence and slows. Anhedonia is the absence of Tau-resonance with external Tau-patterns. Antidepressants restore the physical Tau-flow substrate.
Psychosis is the Tau-mirror generating internal Tau-patterns mistaken for external standing-wave signals. Hallucinations are internal Tau-signals perceived as external; delusions are Tau-models that cannot be updated by actual evidence.
The collective Tau-field is the aggregate of Tau-flow patterns shared between addresses in proximity. Cultural narratives and collective memory are Tau-patterns encoded in shared Tau-addresses. Group trauma is a Tau-field disruption persisting across addresses.