"We believe that the multitude of those gathered around Jesus and Mary in Paradise forms the Church of heaven, where in eternal blessedness they see God as he is and where they are also, to various degrees, associated with the holy angels in the divine governance exercised by Christ in glory, by interceding for us and helping our weakness by their fraternal concern" (Paul VI, CPG # 29).
Source: Catechism of the Catholic Church (Vatican.va)