" That dismisses once and for all every clamorous desire for something more. One who wants more than what Christ has established does not want Christian brotherhood. He is looking for some extraordinary social experience which he has not found elsewhere; he is bringing muddled and impure desires into Christian brotherhood. Just at this point Christian brotherhood is threatened most often at the very start by the greatest danger of all, the danger of being poisoned at its root, the danger of confusing Christian brotherhood with some wishful idea of religious fellowship, of confounding the natural desire of the devout heart for community with the spiritual reality of Christian brotherhood. In Christian brotherhood everything depends upon its being clear right from the beginning, first, that Christian brotherhood is not an ideal, but a divine reality. Second, that Christian brotherhood is a spiritual and not a psychic reality. "
― Dietrich Bonhoeffer , Life Together: The Classic Exploration of Christian Community