718. Verse 4. And his tail drew the third part of the stars of heaven, signifies the falsification and adulteration of all truths of the Word. This is evident from the signification of "drawing with the tail," as being, in reference to "the dragon," falsification and adulteration (of which presently); also from the signification of "the third part," which means all, and is predicated of truths (See above, n. 384, 506); and from the signification of the "stars of heaven," as being the knowledges of truth and good from the Word (See also above, n. 72, 402), thus also truths, for the knowledges of truth and good are the truths of the natural man, from which the rational and spiritual man has intelligence. From this it is evident that "to draw with the tail the third part of the stars of heaven" signifies in reference to the dragon to falsify and adulterate the truths of the Word. Such is the signification because "the dragon" means in general all who acknowledge the Word and read it and yet do not live according to it, and this because they separate life, which is charity, from faith, and believe that it is sufficient merely to think those things that are in the Word, and to persuade themselves that they are saved by thinking and talking about certain things from the Word with trust and confidence, and that faith alone justifies and saves, and not anything of life or work. (That such are meant by "the dragon" may be seen above, n. 714.) To confirm their dogmas from the Word they bring forward passages in which faith is mentioned and in which faith is treated of; but the passages in which charity and love are mentioned, and doing is spoken of, they pervert by applying them to faith alone, and thus they falsify the Word, which from beginning to end is the doctrine of love to the Lord and of charity towards the neighbor. This falsification and adulteration of the truths of the Word is meant by "drawing down with the tail the third part [of the stars] of heaven." This is the meaning of these words because the tail is a continuation of the brain through the spine of the back, of which it is an appendage; thus the tail is moved by the head and the body according to the desires and appetites of the natural man; the movements of the tail, therefore, are effects flowing from the delights of the loves in which the sensual man is, and the loves of the sensual man falsify and adulterate the truths of the Word. (That the "tail" signifies the sensual, which is the ultimate of the natural man, may be seen above, n. 559.) Whether it is said that the loves of the sensual man falsify and adulterate the truths of the Word or that the sensual does this, it is the same, for the sensual loves to live for the body and for the world, thus according to its own nature; and this life it feels, but it does not feel the interior life, therefore it denies that life.

Ships were used in the ancient world -- as they generally are now -- to carry freight from nation to nation for trade. The various valuable items in the cargo represent desires for specific good things and individual ideas about how to accomplish good things. The ships, then, represent containers for those good desires and true ideas -- they represent doctrinal systems, large collections of good desires and true thoughts woven into a whole and working as one. For instance, if we believe that we need to turn to the Bible to learn about right and wrong, need to compel ourselves to do what's right even if we don't want to, and need to trust that the Lord will help us come to love doing what's right, that would be a doctrinal system -- a bunch of ideas and desires for good all working together. Specific ideas -- we should read the Bible, we should pray, we can trust that the Lord is helping us -- are like cargo that is carried along by that larger doctrine.