Abstract: This randomized clinical trial with a sample of adults (N = 129) from India explored the effects of a single core‐transformation session on symptom experience and psychological growth. The results over the total 8‐week study period indicated significant, moderate overall effect sizes (ds = 0.63 and 0.52) for symptom experience, emotional stability, affect balance, global well‐being, and purpose in life. Implications for research and clinical practice are discussed.