This episode explores the role of the Holy Spirit in the Catholic Church, specifically focusing on its connection to the Church's mission. Against the backdrop of Day 104 in a year-long Catechism study, Fr. Mike Schmitz discusses the inseparability of the missions of Christ and the Holy Spirit, emphasizing their culmination within the Church as the body of Christ and temple of the Holy Spirit. More significantly, he highlights four key actions of the Holy Spirit within the Church: preparing individuals to spread the faith, manifesting the risen Lord, making Christ's mystery present (especially in the Eucharist), and fostering communion with God. For instance, Fr. Schmitz connects this to the sacraments, moral life, and prayer, which are made actual through the Holy Spirit's work. The episode concludes by looking forward to the next article on the Holy Catholic Church, inviting listeners to reflect on their understanding of the Church's beliefs and its role in bringing people into communion with the Holy Trinity.