429. And I heard the number of them that were sealed.- That this signifies the quality of those who are in good, and separated from the evil, is evident from the signification of number, which denotes the quality of the thing treated of, with which signification we shall deal presently; and from the signification of the sealed, as denoting those who are in good, distinct and separate from others. Concerning which signification see just above (n. 427:1).

Number and measure are mentioned in many places in the Word, and it is supposed that nothing more is meant by these than number and measure; but by number and measure in the spiritual sense is meant the quality of the thing treated of. The quality itself is determined by the numbers expressed, as in this place by a hundred and forty and four thousand, and afterwards by twelve thousand out of every tribe. The signification of these numbers shall therefore be explained in the following article. The reason why number signifies the quality of the thing treated of, is that the Word is spiritual, and consequently every detail contained in it is spiritual, and spiritual things are not numbered and measured, but yet they fall into numbers and measures when they [descend] out of the spiritual world, or out of heaven, where angels are, into the natural world or earth, where men are; and similarly, when they pass out of the spiritual sense of the Word in which angels are, into the natural sense of the Word in which men are. The natural sense of the Word is the sense of its letter. This is the reason that in this sense there are numbers, and that they signify spiritual things, or such as relate to heaven and the church. It has been often shown me that the spiritual things of heaven, such as those which the angels think and speak, also fall into numbers. When they were conversing, their discourse fell into pure numbers, and these were seen upon paper; they afterwards said that it was their discourse which had fallen into numbers, and that those numbers in a series contained everything they uttered. I was also instructed as to their signification, and how they were to be understood; upon this subject we shall have frequent occasion to speak in the following pages. But concerning writings from heaven in pure numbers, see Heaven and Hell 263). That all numbers in the Word signify things pertaining to heaven and the church, see also above (n. 203, 336).

5199. 'Beautiful in appearance' means which are expressions of faith. This is clear from the meaning of 'beauty' and 'appearance'. Spiritual 'beauty' is essentially an affection for interior truth, while spiritual 'appearance' is essentially faith, so that 'beautiful in appearance' means an affection for the truth of faith, see 553, 3080, 3821, 4985. The reason spiritual beauty is an affection for interior truth is that truth is the outward form taken by good. The good which they receive in heaven from the Divine provides angels with the life they possess; but the outward form taken by that life is provided by the truths springing from that good. The truth of faith however does not provide the beauty but the affection itself present within the truths of faith springing from good. Beauty that is provided solely by the truth of faith is like the beauty of a face seen in a painting or a sculpture, but the beauty provided by an affection for truth springing from good is like the beauty of a real face full of life imparted to it by heavenly love; for as is the love - that is, as is the affection - which shines out of the form provided by the face, so is the beauty seen there. This being so, the outward appearance of the angels is indescribably beautiful. Their faces are radiant with the good of love passing through the truth of faith, which good and truth not only present themselves visually but can also be felt from the spheres that emanate from them.

[2] The reason why this is the source of beauty is that heaven in its entirety is the Grand Man and has a correspondence with every single part of the human being. Everyone therefore who has the good of love and for that reason the truth of faith present in him has the form which heaven possesses present within him; and as a consequence of this there is also imparted to him the beauty which heaven possesses, heaven being a place where the Divine going forth from the Lord is the All in all. This also explains why those in hell, being the opposite of what is good and true, are horribly ugly, and in the light of heaven do not look like human beings but like monsters. The reason why spiritual appearance (aspectus) is faith is that in the internal sense 'looking at (aspicere) and seeing' means understanding, and in a sense more internal than this having faith is meant, see 897, 2150, 2315, 2807, 3863, 3869, 4403-4421.