251. The reason why the “serpent” means all evil in general, and specifically the love of self, is that all evil has had its rise from that sensuous part of the mind, and also from that memory-knowledge [scientifico], which at first were signified by the “serpent;” and therefore it here denotes evil of every kind, and specifically the love of self, or hatred against the neighbor and the Lord, which is the same thing. As this evil or hatred was various, consisting of numerous genera and still more numerous species, it is described in the Word by various kinds of serpents, as “snakes” “cockatrices” “asps” “adders” “fiery serpents” “serpents that fly” and “that creep” and “vipers” according to the differences of the poison, which is hatred. Thus we read in Isaiah:

Rejoice not thou, whole Philistia, because the rod which smiteth thee is broken, for out of the serpent’s root shall go forth a cockatrice, and his fruit shall be a flying fire-serpent (Isaiah 14:29).The “serpent’s root” denotes that part of the mind, or that principle, which is connected with the senses and with memory-knowledge [est sensuale et scientificum]; the “cockatrice” denotes evil originating in the falsity thence derived; and the “flying fire-serpent” the cupidity that comes from the love of self. By the same Prophet also similar things are elsewhere thus described:

They hatch cockatrice’s eggs, and weave the spider’s web; he that eateth of their eggs dieth, and when it is crushed there cometh out a viper (Isaiah 59:5).

The serpent described here in Genesis is called in the Revelation the “great and red dragon” and the “old serpent” and also the “devil and satan” that “deceives the whole world” (Revelation 12:3, 9; 20:2), where, and also in other places, by the “devil” is not meant any particular devil who is prince over the others, but the whole crew of evil spirits, and evil itself.

6949. 'And it was made into a serpent' means the sensory and bodily level of a person's mind separated from the internal. This is clear from the meaning of 'a serpent' as a person who engages in reasoning based on sensory evidence, dealt with in 195-197, 6398, 6399, thus the sensory level of a person's mind. And since 'a serpent' means the sensory level it means the bodily also, for the sensory level acquires its perceptions from the bodily senses. And since the sensory level regarded in itself is such as is described immediately above in 6948, 'a serpent', which is the sensory level, also means all evil in general, 251, 254, 257. The use of 'a serpent' here to mean the sensory and bodily level of a person's mind separated from the internal or rational level is evident from the fact that Moses fled from before it, meaning a feeling of horror caused by it, as well as from the fact that this sign describes the state of those who belonged to the spiritual Church if they were not in possession of faith; for in that case their internal would be closed and no more of the light of heaven would flow in than would be sufficient to enable them to think on that separated sensory level and therefore speak on that level. This level, separated [from the internal], is the one on which all people think who defend falsities in opposition to truths, and evils in opposition to forms of good, in short all who in life pursue what is evil and who are consequently devoid of any faith since those who lead an evil life have no belief at all. People like this have greater ability than others to engage in reasoning and to convince others, especially the simple, because when they speak they draw on the illusions of the senses and worldly appearances. They also know how to demolish truths or hide them from view by means of illusions, on account of which cunning and deceitfulness are also meant by 'serpents'. When however the sensory level has become joined to the internal or has been made properly subordinate to the rational, 'a serpent' means shrewdness and circumspection, 197, 4111, 6398.