383. Since our discernment corresponds to our lungs, and our thinking therefore to their breathing, "soul" and "spirit" in the Word mean discernment, as in "you shall love the Lord your God with your whole heart and your whole soul" (Matthew 22:35 [22:37]), or "God will give a new heart and a new spirit" (Ezekiel 36:26; Psalms 51:12-13 [51:10]). I have already explained [378-381] that the heart means the love of our volition, so soul and spirit mean the wisdom of our discernment.

You may see in Teachings for the New Jerusalem on the Lord 50-51 that the spirit of God, also called the Holy Spirit, means divine wisdom and therefore divine truth, the means of our enlightenment.

This is why "the Lord breathed on the disciples and said, 'Receive the Holy Spirit'" (John 20:22). This is also why it says, "Jehovah God breathed the breath of life into Adam's nostrils, and he became a living soul" (Genesis 2:7), and why God said to the prophet, "Prophesy over the spirit and say to the wind, 'Come, spirit, from the four winds and breathe upon these who have been slain, so that they may live'" (Ezekiel 37:9). There are similar statements elsewhere as well. It is why the Lord is called the spirit of the nostrils and also the breath of life.

Since our breathing comes through our nostrils, they are used to mean perception. An intelligent person is referred to as "keen-scented," and a dense person as "dull-scented." This is also why in Hebrew and in some other languages, "spirit" and "wind" are expressed by the same word. In fact, the word "spirit" is derived from [a root that means] breathing; so when people die we speak of their "breathing their last." This is also why people believe that a spirit is a wind or something airy, like the breath that issues from our lungs, and believe the same of the soul as well.

We can tell from this that "loving God with the whole heart and with the whole soul" means with all our love and all our discernment, and that "giving a new heart and a new spirit" means a new volition and a new discernment.

It is because the spirit means discernment that it says of Bezaleel that "he was filled with the spirit of wisdom, intelligence, and knowledge" (Exodus 31:3) and of Joshua that "he was filled with the spirit of wisdom" (Deuteronomy 34:9), and that Nebuchadnezzar said of Daniel that "a superlative spirit, one of knowledge and intelligence and wisdom was in him" (Daniel 6:5 [5:11-12, 14]), and why it says in Isaiah that "those who are wandering in spirit will know intelligence" (Isaiah 29:24). Similar statements may be found in many other places.

Dust, in Ezekiel 26:12, signifies the lowest things which are of the sensual principle of man. They can be either good or bad, depending on the context.

In Isaiah 40:12, the dust signifies exterior or natural truths and goods of heaven and the church.

In Genesis 2:7, the dust is good, and we see some interesting nuances:

First, there's this: 'To form the man, dust from the ground' is to form his external man, which had not previously been man... (Arcana Coelestia 94)

Here, this formation of our external body and mind is a precursor, setting the stage for God to "breathe into our nostrils".

In Arcana Coelestia 1610, we find this passage, where again, dust has a good signification:

'Dust of the earth' has regard to those things that are celestial, for, as shown already, 'the earth' means the celestial aspect of love; 'dust of the sea' has regard to those things that are spiritual, for 'the sea', as has also been shown, means the spiritual aspect of love; while 'as the stars of heaven' means both but in a higher degree. And because these things cannot be numbered they therefore became common expressions to describe growth and multiplication beyond measure.

Then, in Arcana Coelestia 3707, these ideas get pulled together:

The reason the dust of the earth symbolizes goodness is that the earth, [or land,] symbolizes the Lord’s kingdom and therefore goodness, as shown just above in §3705. The dust of that land, then, means goodness, but earthly goodness, since the land symbolizes what is lowest in the Lord’s kingdom....

But there are bad connotations, too. In Micah 7:14-17, licking dust symbolizes being only sensual - bodily and external, worldly, and selfish. It's much the same in Psalms 72:9, where "Barbarians will bow down before God, and His enemies lick the dust...". See Arcana Coelestia 249, 3413 for interesting explanations of this.

(Odkazy: Apocalypse Explained 1145)