The Bible often speaks of signs and miracles as things that convinced people of the Lord's leading. "Signs" convince people to believe intellectually, and "miracles" convince people to believe emotionally. For instance, it was a "sign" for the shepherds that they would find the newborn Jesus wrapped in swaddling clothes, lying in a manger. This was not something that defied explanation; there is nothing impossible about a baby being laid in a manger. On the other hand miracles such as the Nile turning into blood, the Red Sea parting or water being made wine were apparently impossible, striking awe and fear in the hearts of observers and thus compelling the emotions. Both signs and miracles, however, are external events that could only force people into compliance out of fear and awe, which is an external form of worship that has little to do with eternal life. The Lord used them in Biblical times because the people of that time were external in nature, and the Lord had to force them into forms of worship to preserve spiritual ideas and to allow for the Bible to be written. Through His advent and His teachings He opened the possibility that we could understand His spiritual meanings, which would allow us to believe and live internally, not just externally.

34. The Divine Infinite is present in human beings as in images of itself, as is evident from the Word, where we read:

At length God said, Let us make man in our image, after our likeness; so God created man in His own image, in the image of God He created him, Genesis 1:26-27 From this it follows that a human being is an organ capable of receiving God, and that its capability as an organ depends upon its capacity to receive. The human mind, which determines that a human being is human and how far he is so, is organised into three zones in accordance with the three degrees. In the first degree is the celestial zone, in which are the angels of the highest heaven; in the second degree is the spiritual zone in which are the angels of the middle heaven; and in the third degree is the natural zone in which are the angels of the lowest heaven.

[2] The human mind, organised as it is according to those three degrees, is a means of receiving Divine influence, but the Divine influence does not penetrate further than the extent to which a person clears the way or opens the door. If he does so up to the highest or celestial degree, then a person truly becomes an image of God, and after his death an angel of the highest heaven. But if he clears the way or opens the door only to the middle or spiritual degree, then although he becomes an image of God it is not to such a pitch of perfection, and after his death he becomes an angel of the middle heaven. But if he clears the way or opens the door only to the lowest or natural degree, then if he acknowledges God and worships Him with true piety, he becomes an image of God in the lowest degree, and after his death becomes an angel of the lowest heaven.

[3] If, however, he does not acknowledge God and worship Him with true piety, he puts off the image of God and becomes like an animal, apart from possessing the faculty of understanding and therefore of speech. If he then shuts off the highest natural degree, which corresponds to the highest celestial, he becomes so far as love is concerned like an animal. If he shuts off the middle natural degree, which corresponds to the middle spiritual, he becomes so far as love is concerned like a fox, and as far as the sight of the understanding is concerned like a nocturnal bird. But if he also shuts off the spiritual part of the lowest natural degree, he becomes so far as love is concerned like a savage beast, and as far as his understanding of truth is concerned like a fish.

[4] Divine Life, which by radiation from the sun of the heaven of angels makes human beings act, can be compared with the light from the sun of this world and its radiation affecting a diaphanous object. The way life is received in the highest degree is like light striking a diamond; in the second degree like light striking a crystal, and in the lowest degree like light striking glass or a transparent membrane. But if the spiritual part of this degree is totally shut off, which happens when the existence of God is denied and Satan is worshipped, the way life from God is received is like light falling upon dark objects on earth, such as rotten wood or a lump of mud or dung, and so on. For then a person becomes a spiritual corpse.