The present thesis examines the genesis and development of new communities, to better understand their mission and specific contributionto the dynamics of the universal and local Church. This reflection contributes to deepening ecclesial self-awareness in view of promoting the ecclesiology of communion. Therefore, this will be a bibliographical review of the main messages of the Magisterium recently pronounced at the world congresses about ecclesiastical movements and the new communities, organized by the Dicastery for Laity, Family and Life. To better understand the place of the new communities within the evangelizing mission of the Church, the research will be limited to the pastoral reality of Brazil, in dialogue with the project of converting the parish as a community of communities, generating greater communion between both realities, respecting their own identity. The resulting discoveries and proposals open new paths in reflection on Charismas in the Church and on new models of collaboration between new communities and parish communities.