Do people convert to mainstream religions to compensate for deficiency needs or to satisfy self-growth motives? This question is particularly important in the context of secularized societies. In the present study, 180 converts to a variety of mainstream religions completed questionnaires measuring attachment with parents in childhood, adult romantic attachment, need for closure, need for cognition, generativity, appreciation on beauty and excellence, and existential achievement. Compared to scores from the general population on the same measures, our results suggested a general existence among converts of affective (insecure attachment to parents, avoidance in adult attachment) and cognitive (need for closure) needs. Except generativity, which was shared by all converts, the presence of other self-growth motives was delimited to specific religions in a way that could be interpreted in terms of correspondence between supply (people's motives) and offer (group's characteristics). Conversion motives 3 Contemporary conversions: Compensatory needs or self-growth motives? There is substantial evidence to support the idea that religious conversion occurs in the presence of pre-existing psychological vulnerabilities. Certainly, an important shift has been made in the study of the psychology of religion, moving from an older model suggesting sudden, passive, and rather emotional conversion to a newer model highlighting gradual, active, and quite rational conversion (Spilka, Hood, Hunsberger, & Gorsuch, 2003). However, there is still evidence showing that many people who convert to a variety of religious groups have experienced personal crises and are motivated by the search for solutions to problems and weaknesses relative to their meaning system, self-esteem, self-control (Paloutzian,