Why have I no report on the causes of his fidelity to the parish church? Surely you know that if a man can't be cured of churchgoing, the next best thing is to send him all over the neighborhood looking for the church that 'suits' him until he becomes a taster or connoisseur of churches

In the first place, the parochial organization should always be attacked because being a unity of place and not of likings, it brings people of different classes and psychology together in the kind of unity the Enemy desires. The congregational principle, on the other hands, makes each church into a kind of club, and finally, if all goes well, into a coterie or faction. In the second place, the search for a 'suitable' church makes the man a critic where the Enemy wants him to be a pupil.

Screwtape Letters - Chapter 16