10185. 'Its walls' means inner levels. This is clear from the meaning of 'the walls' or the sides as inner levels; for when 'the roof' means that which is inmost, 'the walls', which are below it, mean the inner levels. By inner levels those which are below the inmost ones and above the lowest, thus those in the middle, should be understood. Inner levels are meant by 'the walls' because the sides and breast of the human body mean inner things; for all representatives on the natural level resemble the human form and carry the same meaning as the parts of it they resemble, 9496. The uppermost part of a house for example, called the roof, is similar in meaning to the head; the inward parts below the uppermost are similar in meaning to the breast and sides; and the foundations of the house are similar in meaning to the feet and soles of the feet. The reason why this should be so is that heaven as a whole resembles one human being, and there is an influx from there into the whole natural order. For the natural world comes into being from the spiritual world and is held in being by it. When the words 'spiritual world' are used, that which is Divine and the Lord's there should be understood.

[2] The resemblance of all things on the natural level to the human form is also clear from each member of the vegetable kingdom. Everything there is clothed with leaves and comes into blossom before bearing fruit; and the fruit is the final end, for the sake of which the previous stages of growth take place and towards which they all look. The leaves there resemble the lungs and serve so to speak in place of the breathing-system; for they are the means by which juices are drawn up the plant, which explains why a tree stripped of its leaves bears no fruit. So it is also that in the Word leaves mean truths constituting faith, 885; for by means of those truths the vital element from which good is formed is in a similar way made to rise up. The blossoming before the fruit comes corresponds to that state and time in people's lives when thoughts of marriage enter their minds and make them glad, thus when truth is joined to good. But the fruit corresponds to actual good, which, to the extent that it matures like fruit, manifests itself in deeds. So it is that in the Word fruit means the deeds of charity, and that the blossoming before the fruit is compared to the voice and the joy of a bride and bridegroom; and so on with all the rest. Anyone therefore who is able to stop and reflect sensibly will recognize most clearly that the heavenly paradise is represented in the earthly paradise, and consequently that all things within the natural order resemble such realities as exist in the spiritual world. And one who is able to draw further conclusions may see that the natural order is not self-existent but is held in being by influx from heaven, that is, from what is Divine there, so completely that if that contact were taken away everything composing the planet would collapse into nothingness. The simple can grasp the truth of this, but not so those in the world who are said to be wise. This is because the simple attribute all things to the Divine, but those in the world who are said to be wise attribute them to natural forces.