Positive psychology (PP) is currently employing its modern research toolkit to examine how individual differences of hedonic (i.e. pursuing pleasure, fun, and painlessness) versus eudaimonic (i.e. pursuing meaning, self-worth, and growth) well-being motives play out against emotional and learning challenges or outcomes in life. Similarly oriented, this study explored possible associations between these distinct positive motivations and second/foreign language (L2) learners' intentional and emotional states of mindfulness and resilience, respectively, in their pursuit of learning goals in an English-as-a-Foreign-Language (EFL) context. A cohort of 326 Iranian EFL learners rated themselves on four related well-being, mindfulness, and resilience questionnaires. The correlational results demonstrated significant positive relationships among L2 learners' eudaimonic motives, resilience, and mindfulness. Similarly, hierarchical regression results revealed that eudaimonic motives significantly predicted the learners' mindfulness and resilience. Further, complementary regression models indicated that the interrelationship among these psychological states was more linear-additive rather than interactive. It is then suggested that fostering L2 learners' eudaimonic well-being orientation can potentially boost their emotion and attention regulation, albeit reciprocally. The findings supported interventions employing eudaimonic (or "scholastic") well-being motives in L2 education.