Alvin Plantinga on Religion as a PlaceboWarranted Christian Belief, (New York: Oxford University Press, 2000), p. 61.
[I]s this posture in fact possible for a human being: can a person accept it, and accept it authentically, without bad faith or doublethink? I am to remain a Christian, to take part in Christian worship, to accept the splendid and powerful doctrines of traditional Christianity. However, I am also to take it that these doctrines are only mythologically true: they are literally false, although accepting them (i.e., accepting them as true, as literally true) puts or tends to put one into the right relation with the Real. And how can I possibly accept them, adopt that attitude toward them, if I think they are only mythologically true — that is, really false? I could, indeed, believe that they are mythologically true; believing that, however, doesn’t move one toward the right kind of life; it is only believing the teachings themselves that allegedly has that salutary effect. Once I am sufficiently enlightened, once I see that those doctrines are not true, I can no longer take the stance with respect to them that leads to the hoped-for practical result. I am left, instead, in the position of a sad and disillusioned Gnostic. I no longer hold Christian belief; I recognize, as I think, that it is in fact false. I also see, of course, that those who do accept it as true are mistaken, deluded; but at any rate they are in the fortunate position of enjoying the comfort and strength and consolation these false beliefs bring; they are also being moved closer to the right kind of life.