In this study, we examined the mediating role of self-compassion in the relationship between insight and altruism and flourishing among mental health professional candidates. We adopted a cross-sectional atemporal design to examine how mental health professional candidates' insight and altruism affect their flourishing via self-compassion. The model was tested using structural equation modeling (SEM). Four hundred one participants (Male = 76, Female = 324; Mage = 20.5, SD = 1.8) took part in the study via a web-based survey and completed the Psychological Well-Being Scale, Altruism Scale, Self-compassion Scale, and Insight Scale. The study results showed that insight, altruism, and self-compassion were meaningful psychological dynamics supporting flourishing. The results revealed that self-compassion played a mediating role in the effect of insight on flourishing. On the other hand, the results showed that self-compassion did not mediate the effect of altruism on flourishing.