2385. And they labored to find the door. That this signifies so that they could not see any truth that would lead to good, is evident from the signification of a "door," as being introduction and access, and as being truth itself, because this introduces to good (see above, n. 2356). But here by the "door" are signified the knowledges that introduce to truth; for the "door" (as said above, n. 2356) was at the front of the house, for it is said that Lot "went out to the door, and shut the door behind him" (verse 6): hence to "labor to find the door," denotes not to see any truth that would lead to good.
 Such do those become, especially in the last times, who by ratiocination hatch doctrinal things, and believe nothing unless they first apprehend it; for in this case the life of evil continually inflows into their rational, and a kind of fallacious light pours in from the fire of the affections of evil, and causes them to see falsities as truths; as are wont to do those who see phantoms in nocturnal light. These same things are then confirmed in many ways, and become matters of doctrine, such as are the doctrinal tenets of those who say that the life (which is of the affection) is of no efficacy, but only the faith (which is of the thought).
 That every principle whatever, even if falsity itself, when once taken up, can be confirmed by innumerable things, and be presented in the outward form as if it were truth itself, may be known to everyone. Hence come heresies; from which, when once confirmed, the man never recedes. Yet from a false principle nothing but falsities can flow; and even if truths are interlarded among them, they became truths falsified when used to confirm a false principle, because they are contaminated by its essence.
 Very different is the case when truth itself is received as a principle, and this is confirmed, as for example that love to the Lord and charity toward the neighbor are that on which hangs all the Law, and of which all the Prophets speak, and that they are therefore the essentials of all doctrine and worship; for in this case the mind would be illuminated by innumerable things in the Word, that otherwise lie hidden in the obscurity of a false principle. Nay, in such a case heresies would be dissipated, and one church would arise out of many, no matter how greatly the doctrinal and ritual matters that flowed from or led to it might differ.
 Such was the ancient Church, which extended through many kingdoms, namely, Assyria, Mesopotamia, Syria, Ethiopia, Arabia, Libya, Egypt, Philistia as far as Tyre and Sidon, and through the land of Canaan on both sides the Jordan. Among these the doctrinal and ritual matters differed, but still the church was one, because to them charity was the essential thing. Then was there the Lord's kingdom on earth as in the heavens, for such is heaven (see n. 684, 690). If it were so now, all would be governed by the Lord as one man; for they would be as the members and organs of one body, which, although not of similar form, nor of similar function, yet all have relation to one heart, on which depend all and each in their several forms, that are everywhere varied. Then would each person say, in whatever doctrine and in whatever outward worship he might be, This is my brother, I see that he worships the Lord, and is a good man.