But when Paul speaks of the holy spirit whereby the Christians are sealed, calling it now the spirit of God and now the spirit of Jesus, he is referring to a profounder experience. Explain conversion as we may, the word represents a real thing. Men were changed, and were conscious of it. Old desires passed away and a new life began, in which passion took a new direction, finding its centre of warmth and light, not in morality, not in religion, but in God as revealed in Jesus Christ. "To me to live is Christ," cried Paul, giving words to the experience of countless others. Life had a new centre; and duty, pain and death were turned to gladness. The early Christian was conscious of a new spirit within him. It was by this spirit that they could cry "Abba, Father"; it was the spirit that guided them into all truth; it was the spirit that united them to God,[32] that set them free from the law of sin and death, that meant life and peace and joy and holiness. Paul trusted everything to what we might call the Christian instinct and what he called the holy spirit, and he was justified. No force in the world has done so much as this nameless thing that has controlled and guided and illumined--whatever we call it. Any one who has breathed the quiet air of a gathering of men and women consciously surrendered to the influence of Jesus Christ, with all its {151} sobering effect, its consecration, its power and gladness, will know what Paul and his friends meant. It is hardly to be known otherwise. In our documents the spirit is closely associated with the gathering of the community in prayer.