It must be noticed, in conclusion, that the evidence which the psychologists have so industriously collected, showing that religion is good for the individual and for society, has been taken almost exclusively from the circle of Christian influences. We might paraphrase James' pragmatic argument and say that Christianity is true because it is good for the individual and for society. His argument from cause might also be applied to Christianity, for the mystical experiences adduced are in great measure not merely those of communion with God but of communion with God in and through Christ. By no analysis in fact, as D. W. Forrest says, is the Christian "able to distinguish his communion with the Father from his communion with Christ. They are blended as consciously real in one indivisible experience."[146] The testimony of Christian experience is to a Power and a Presence which the Christian feels only as he hears and accepts the gospel message and looks to Christ for forgiveness, guidance, and help. "A man who is converted, in the New Testament sense, is one who has surrendered to a force immeasurably greater than anything he has of himself; one who has awakened to the overwhelming consciousness of a spiritual world brought to a focus before him in the Person of Jesus Christ."[147] The Christian believes that he receives grace from the Father and the Son. "When Jesus deals with us and works within us, He does what only God can do. All Christian experience is nothing if it is not this."[148] 146: "The Christ of History and of Experience," p. 166. 147: H. Wheeler Robinson: "The Christian Doctrine of Man," 1911, p. 322. 148: P. C. Simpson: "The Fact of Christ," pp. 130, 131. After all the secret of the Lord, known to Christians in the catacombs at Rome as they sang, "Jesu, Amor Meus," known to medieval Christians as they sang "Jesu, Dulcis Memoria," and known equally to modern Christians who sing "Jesus, Lover of My Soul," is with them that fear Him. It has been well said that Christianity must be known from the inside, if it is to be known at its full worth. In the nature of the case the evidence of Christian experience is not demonstrative to an outsider. It can come to him only in the way of an appeal: "Come and see; taste and see that the Lord is good." IV THE CHRISTIAN FAITH AND RECENT PHILOSOPHY