Addressing diversity and apparent contradictions in manifestations of happiness, this article delineates subjective well-being (SWB) as a dynamic system in the face of possible adversity. SWB constitutes a favorable psychological environment that regu-lates the hostile-world scenario, defined as one’s image of actual or potential threats to one’s life or integrity. SWB operates in various modules: experiential, wherein private awareness of SWB dwells on relevant core themes; declarative, wherein public self-reports of SWB function as social behavior; differential, wherein synchronic dimensions of SWB form well-being types; and narrative, wherein diachronic valences of SWB construct trajectories along one’s life story. By explicating the reg...