Testing the Mindfulness-to-Meaning Theory in Daily Life.

Objectives: The Mindfulness-to-Meaning Theory (MMT) describes the processes through which mindfulness leads to enhanced eudaimonic wellbeing (indirectly via mediating processes such as increased decentering, reappraisal, positive affect, and savoring), but little is currently known about how these processes impact one another over short time periods (e.g., across several hours). The current study tested the MMT by measuring these variables repeatedly as they occur naturalistically in daily life. Method: Three hundred and forty-five community members aged 18-65 completed surveys on smartphones six times per day over seven days, assessing their current levels of decentering, reappraisal, positive affect, savoring, and wellbeing, as part of a larger study. Multilevel structural equation modeling in Mplus was used to analyze the nested data with mediation models. Results: There was a significant indirect effect through the proposed MMT pathway at the within-person level, with all variables measured concurrently. Lagged mediation examining prospective effects indicated that the full indirect MMT pathway was not significant in predicting later wellbeing, though some individual indirect pathways were significant prospectively. Follow-up analyses testing alternative temporal ordering suggested bidirectional effects of savoring and positive affect in explaining the mutual association between decentering and wellbeing. Conclusion: Overall, this study found support for hypothesized MMT processes in daily life and measured over short time periods, with evidence for bidirectional effects for some processes. However, reappraisal showed inconsistent effects, requiring further study and replication using ecological momentary assessment designs.