AbstractThere are only a few studies in Sweden concerning migrants who have converted from Islam to Christianity through Swedish churches and the integration of those converts into Swedish society. The present study therefore concerns the integration of converts and new Christians through congregations and religious community. The main purpose of the thesis is to gain a deeper understanding of how new Christians experience the process of integrating through community, and whether the religious/social community is helpful in promoting and facilitating the integration of new Christians into Swedish society.The study was conducted in two Persian churches and nonprofits, EFS Missionary Association, in the Stockholm region which offers a number of different religious and social activities for Christian Iranians. The study is based on an ethnographic methodological approach: interviews with four church pastors and leaders, participant observation and informal conversations. Drawing on the theoretical perspectives of Pierre Bourdieu – field, habitus and capital - the study analyzes how migration affects the individual, and how religious and social communities can compensate for the consequences of migration,destabilisations of networks, habitus or the embodied preferences. It also analyzes, to some extent, how these communities enrich converts’ lives with what they are missing due to theirmigrant experience.The work of integration by missionary groups aims to help immigrants become integrated into Swedish society. But that means, at first, a person becoming a part of the Christian family or being folded into the body of believers [the local church body] and building relationships within the fellowship of the church. This means a person assimilates religious by conversion, and being a part of the community as the way to unity and integration. The study shows how church staff and pastors engage in promoting integration and the employment of converts, and how they go about helping in this way. This happens, for instance, through Bible studies, church classes, counselling, social and cultural gatherings, and help with work.The study shows that missionaries and churches serve to integrate converts largely through religious and social communities, where converts are taken into the fellowship and led to an internal network. This network makes them more inclined to engage outside the church context. Religious and social community is also a place where a new Christian develops social and cultural competencies for future interactions and relationships within Swedish society. In addition, the study analyzes the convert's opportunities and challenges in this process, where the Swedish language, fears, anxiety, lack of motivation, and socializing across ethnic boundaries are considered significant challenges. A side effect of these challenges is disintegration or expanding differences and repulsion.