Abstract Emotional regulation is not solely a psychological phenomenon — gut bacteria actively produce neurotransmitters including GABA that modulate anxiety and stress responses through the gut-brain axis. Yet this biological reality remains invisible in how we understand selfhood and emotional autonomy. Most interventions treat stress as a generic physiological state to be suppressed. Meng Po Tang begins from a different premise: that the moment of emotional collapse is itself a form of biological knowledge, and that this knowledge can be encoded, stored, and returned to the body as care.