Sense of purpose has proven a consistent predictor of positive outcomes during adulthood. However, it remains unclear how purposeful adults respond to positive events in their daily lives. The current study examined whether sense of purpose predicted the frequency of daily positive events, as well as participants' affect on days with a positive event, across 8 days in an adult sample (n = 1959; mean age: 56 years). Sense of purpose predicted a greater frequency of daily positive events. Moreover, sense of purpose moderated the associations between daily positive events and daily positive affect; purposeful adults experienced less of an increase in positive affect both on the current day and the day following the positive event. Findings are discussed with respect to how purpose in life may serve homeostatic functions, insofar that having a life direction reduces responsivity to daily events and promote affect stability. (PsycInfo Database Record (c) 2020 APA, all rights reserved).