2. Before treating of the New Jerusalem and its doctrine, something shall be said of the New Heaven and the New Earth. In the small work on The Last Judgment and the Destruction of Babylon it was shown what is meant by the "first heaven and the first earth" which had passed away. After they had passed away, and thus after the Last Judgment had been accomplished, the new heaven was created, that is, formed by the Lord. This heaven was formed of all those who after the Lord's advent even to the present time, had lived a life of faith and charity; since they alone were forms of heaven. For the form of heaven, according to which all consociations and communications are there effected, is the form of Divine Truth from the Divine Good which proceeds from the Lord; and this form a man puts on as to his spirit by a life according to Divine Truth.

That the form of heaven is from this source, may be seen in the work Heaven and Hell 200-212; and that all angels are forms of heaven, in Heaven and Hell 51-58, 73-77. From this it may be known, of whom the new heaven was composed, and hence also what its quality is; namely, that it is altogether of one mind; for he, who lives a life of faith and charity, loves another as himself, and through love conjoins him to himself, and thus reciprocally and mutually, because love in the spiritual world is conjunction. When, therefore, all act alike, then from many, yea, from countless numbers consociated according to the form of heaven, there arises one mind, and there results, as it were, a one; for there is nothing which separates and divides, but everything conjoins and unites.

1413. 'To the land which I will cause you to see' means the spiritual and celestial things that were to be brought to view. This is clear from the meaning of 'a land', 662, 1066, and indeed from the meaning here of 'the land of Canaan' which represents the Lord's kingdom, as becomes clear from many places in the Word. For this reason the land of Canaan is called the Holy Land, and also the heavenly Canaan. And since it represented the Lord's kingdom, it also represented and meant the celestial and spiritual things that belong to the Lord's kingdom, and here those that belong to the Lord Himself.

6398. 'Dan will be a serpent on the road' means their reasoning regarding truth, since good does not as yet lead them. This is clear from the representation of 'Dan' as those guided by truth but not as yet by good, dealt with above in 6396; from the meaning of 'a serpent' as reasoning based on sensory evidence, dealt with below; and from the meaning of 'the road' as truth, dealt with in 627, 2733. Thus 'Dan is a serpent on the road' means their reasoning regarding truth, since good does not as yet lead them. The nature of that reasoning and the nature of the truth resulting from it will be stated below.

[2] The reason why 'a serpent' means reasoning based on sensory evidence is that the interiors of a person are represented in heaven by living creatures of various kinds, and therefore in the Word similar things are meant by those same creatures. A person's sensory powers have come to be represented by serpents because they are the lowest of his mental powers. Compared with other mental powers those of the senses are on the ground so to speak, crawling around there, as may also be recognized from the forms that sensory impressions adopt when they enter in, which will in the Lord's Divine mercy be dealt with elsewhere. This explains why those sensory powers have come to be represented by 'serpents', so much so that the Lord's Divine sensory perception was represented by the bronze serpent in the wilderness, 4211 (end).

[3] True shrewdness and circumspection - qualities that reveal themselves in external affairs - were also meant by 'serpents', in Matthew,

Be shrewd as serpents and simple as doves. Matthew 10:16.

But in the case of a person who is governed by his senses and is far removed from what is internal - as those people are who are guided by truth but not as yet by good - and who speaks as his senses tell him, 'a serpent' means false reasoning. This therefore is why here, where Dan is the subject, reasoning regarding truth because good does not as yet lead him is meant. In other contexts ill-will, deceitfulness, and trickery are also meant by 'serpents', though in those places they are poisonous serpents - such as vipers and the like - whose reasoning is their poison.

'A serpent' is reasoning based on sensory evidence, see 195-197.

'A serpent' is all evil in general, and evils are distinguished from one another by different kinds of serpents, 251, 254, 257.