Does Christianity have a form? The question seems to be as unimportant as it is unfamiliar. But it could be that everything depends on it. Yet how can one answer either Yes or No to it? If we say No, that Christianity cannot be fixed to any single form, then we must also admit that all of its inner-worldly expressions are ephemeral and can make no absolute claim of validity: according to this point of view, Christianity refers to the invisible, to what transcends every concept,