Air" in the Bible represents thought, but in a very general way – our capacity to perceive ideas and the way we tend to think, rather than our specific ideas about specific things. We see the world around us through the air, and seeing corresponds to understanding. We hear through the air, and hearing corresponds to being taught and obeying. Birds fly in the air, and they represent specific thoughts and ideas. And breathing itself – taking in air and passing oxygen to the blood – represents our understanding of true spiritual ideas.

In Genesis 1:26, when used with fowls or birds of the air refers to the air we breathe, but sky, or heavens where are stars, and together these terms refer to both the spiritual and natural man, and to their food, or goods and truths. (Arcana Coelestia 57, 58)

In Genesis 3:8, the only Old Testament reference to air is in the phrase "cool of the day" (at the time of the evening breeze) which signifies the period when the church still had some spiritual perception. (Arcana Coelestia 221)

In Revelation 9:2; 16:17, air signifies the divine truth, darkened by infernal falsities. (Apocalypse Explained 541, Apocalypse Revealed 423)

In Revelation 16:17, everyone in the spiritual world breathes air according to his faith. (Apocalypse Revealed 708, Apocalypse Explained 1012, Apocalypse Revealed 708)

4570. 'But indeed Israel will be your name' means the nature of the internal natural, or the nature of the spiritual aspect of it, represented by 'Israel'; 'and He called his name Israel' means the internal Natural or the celestial-spiritual aspect of the Natural. This is clear from the meaning of 'name' as the essential nature, dealt with just above in 4568, and from the meaning of 'Israel' as the internal aspect of the Lord's natural and also the celestial-spiritual aspect of the Natural. No one can know why Jacob was called Israel unless he knows what the internal natural is and what the external natural is, and in addition what the celestial-spiritual aspect of the natural is. These matters have in actual fact been explained already, when Jacob was named Israel by the angel; but because they are the kind of things about which people know little, if anything, they need to be explained again.

[2] Two quite distinct and separate degrees exist in man - the rational and the natural. The rational constitutes the internal man and the natural the external; but the natural, like the rational also, has an external aspect of its own and an internal one. The external aspect of the natural is composed of the physical senses and of the impressions received from the world through these senses immediately. By means of his sensory impressions a person is in touch with things belonging to the world and to the body; and people who are confined solely to this natural are called sensory-minded because their thought goes scarcely at all beyond sensory experience. But the internal part of the natural is made up of ideas inferred - by the use of analysis and analogies - from what is in the external, even though it draws on and derives its ideas from sensory impressions. So the natural is in touch through the senses with things belonging to the world and to the body, and through ideas, arrived at by the use of analogy and analysis, with the rational, thus with things belonging to the spiritual world. Such is the composition of the natural. There is another part that exists between and has links with both of them - with the external aspect and with the internal - and so is in touch through the external with things in the natural world, and through the internal with those in the spiritual world. This external natural is represented specifically by 'Jacob', and the internal natural by 'Israel'. The situation is similar with the rational; that is to say, there is an external aspect and an internal, and a further one between the two. But this, in the Lord's Divine mercy, is to be discussed where Joseph is the subject, for 'Joseph' represents the external aspect of the rational.

[3] What the celestial-spiritual is however has been stated several times already - that essentially the celestial is good and the spiritual truth, so that the celestial-spiritual is that which is good resulting from truth. Now because the Lord's Church is both external and internal, and internal features of the Church had to be represented by the descendants of Jacob through things of an external nature, Jacob could not therefore be called Jacob any longer, but was called Israel - see what has been introduced already about these matters in 4286, 4292. Further to this it should be recognized that the terms celestial and spiritual are used both of the rational and of the natural. Celestial is used when people receive good, and spiritual when they receive truth from the Lord; for the good which flows from the Lord into heaven is called celestial, and the truth is called spiritual. In the highest sense the naming of Jacob as Israel means that the Lord progressed towards more interior aspects and made the Natural within Him Divine, both the external aspect of it and the internal. For in the highest sense that which is represented is the Natural itself.