293. It was also perceived that a sphere flows forth, not only from angels and spirits but also from each and all things that appear in the spiritual world, - from trees and from their fruits, from shrubs and from their flowers, from herbs, and from grasses, even from the soils and from their very particles. From which it was patent that both in the case of things living and things dead this is a universal law, That each thing is encompassed by something like that which is within it, and that this is continually exhaled from it. It is known, from the observation of many learned men, that it is the same in the natural world - that is, that there is a wave of effluvia constantly flowing forth out of man, also out of every animal, likewise out of tree, fruit, shrub, flower, and even out of metal and stone. This the natural world derives from the spiritual, and the spiritual world from the Divine. 294. Because those things that constitute the sun of the spiritual world are from the Lord, but are not the Lord, they are not life in itself, but are devoid of life in itself; just as those things that flow forth from angel or man, and constitute spheres around him are not the angel or the man, but are from him, and devoid of his life. These spheres make one with the angel or man no otherwise than that they are concordant; and this they are because taken from the forms of their bodies, which in them were forms of their life. This is an arcanum which angels, with their spiritual ideas, are able to see in thought and also express in speech, but men with their natural ideas are not; because a thousand spiritual ideas make one natural idea, and one natural idea cannot be resolved by man into any spiritual idea, much less into so many. The reason is that these ideas differ according to degrees of height, which were treated of in Part Third. 295. That there is such a difference between the thoughts of angels and the thoughts of men was made known to me by this experience: The angels were asked to think spiritually on some subject, and afterwards to tell me what they had thought. This they did; but when they wished to tell me they could not, and said that these things could not be expressed in words. It was the same with their spiritual language and their spiritual writing; there was not a word of spiritual language that was like any word of natural language; nor was there anything of spiritual writing like natural writing, except the letters, each of which contained an entire meaning. But what is wonderful, they said that they seemed to themselves to think, speak, and write in the spiritual state in the same manner that man does in the natural state, when yet there is no similarity. From this it was plain that the natural and the spiritual differ according to degrees of height, and that they communicate with each other only by correspondences.