DLW 173. It has been said in the preceding pages, and shown in the work on Heaven and Hell, that the spiritual world is like the natural world, with the difference only that each and every thing of the spiritual world is spiritual, and each and every thing of the natural world is natural. As these two worlds are alike, there are in both, atmospheres, waters, and lands, which are the generals through and from which each and all things take their form (existunt) with infinite variety.

DLW 174. As regards the atmospheres, which are called ethers and airs, they are alike in both worlds, the spiritual and the natural, with the difference only that they are spiritual in the spiritual world, and natural in the natural world. The former are spiritual, because they have their form from the sun which is the first proceeding of the Divine Love and Divine Wisdom of the Lord, and from Him receive within them the Divine fire which is love, and the Divine light which is wisdom, and carry these down to the heavens where the angels dwell, and cause the presence of that sun there in things greatest and least. The spiritual atmospheres are divided substances, that is, least forms, originating from the sun. As these each singly receive the sun, its fire, distributed among so many substances, that is, so many forms, and as it were enveloped by them, and tempered by these envelopments, becomes heat, adapted finally to the love of angels in heaven and of spirits under heaven. The same is true of the light of that sun. In this the natural atmospheres are like spiritual atmospheres, that they also are divided substances or least forms originating from the sun of the natural world; these also each singly receive the sun and store up its fire in themselves, and temper it, and carry it down as heat to the earth, where men dwell. The same is true of natural light.

DLW 175. The difference between spiritual and natural atmospheres is that spiritual atmospheres are receptacles of Divine fire and Divine light, thus of love and wisdom, for they contain these interiorly within them; while natural atmospheres are receptacles, not of Divine fire and Divine light, but of the fire and light of their own sun, which in itself is dead; consequently there is nothing interiorly in them from the sun of the spiritual world, although they are environed by spiritual atmospheres from that sun. That this is the difference between spiritual and natural atmospheres has been learned from the wisdom of angels.

DLW 176. That there are atmospheres in the spiritual, just as in the natural world, can be seen from this, that angels and spirits breathe, and also speak and hear-just as men do in the natural world; and respiration, speech, and hearing are all effected by means of a lowest atmosphere, which is called air; it can be seen also from this, that angels and spirits, like men in the natural world, have sight, and sight is possible only by means of an atmosphere purer than air; also from this, that angels and spirits, like men in the natural world, think and are moved by affection, and thought and affection are not possible except by means of still purer atmospheres; and finally from this, that all parts of the bodies of angels and spirits, external as well as internal, are held together in connection by atmospheres, the external by air and the internal by ethers. Without the surrounding pressure and action of these atmospheres the interior and exterior forms of the body would evidently dissolve away. Since angels are spiritual, and each and all things of their bodies are held together in connection, form, and order by means of atmospheres, it follows that these atmospheres are spiritual; they are spiritual, because they arise from the spiritual sun which is the first proceeding of the Lord's Divine Love and Divine Wisdom.

DLW 177. That there are also waters and lands in the spiritual as well as in the natural world, with the difference that these waters and lands are spiritual, has been said above and has been shown in the work on Heaven and Hell; and because these are spiritual, they are moved and modified by the heat and light of the spiritual sun, the atmospheres therefrom serving as mediums, just as the waters and lands in the natural world are moved and modified by the heat and light of the sun of their world, its atmospheres serving as mediums.

DLW 178. Atmospheres, waters, and lands are here specified, because these three are generals, through and from which each and all things have their form (existunt) in infinite variety. The atmospheres are the active forces, the waters are the mediate forces, and the lands are the passive forces, from which all effects have existence. These three forces are such in their series solely by virtue of life that proceeds from the Lord as a sun, and that makes them active.