F.B. Meyer emphasizes the profound mystery of Christ's indwelling within the hearts of Gentiles, highlighting that this revelation, brought forth by the Apostle Paul, signifies that all believers, regardless of their background, are co-heirs of the Gospel. He explains that Christ's presence within us is not dependent on our feelings or actions but is a reality to be accepted by faith, leading to a transformed life that reflects His glory. Meyer encourages believers to recognize and embrace this divine indwelling, which empowers them to live with patience, grace, and a deeper connection to God, ultimately revealing the riches of His glory in their lives.