We tend to think of "fruit" in two ways in natural language. One is as food that grows on trees and vines, sweet and delicious, and able to be eaten without harming the plant in any way. Another is as the things we produce, what our work yields for the betterment of the world. These are obviously connected: we are like trees, producing things that "feed" the world in some way, just as the tree produces fruit that feeds us. It makes sense, then, that the idea of fruit in the Bible is bound closely to the idea of goodness. Fruits that are eaten represent the desire for good and the energy to do what is good; fruit that is produced is the actual good that we go into the world and do.

362. I heard the second animal saying, signifies out of the inmost heaven from the Lord. This is evident from what was said above n. 353; for by the animals are meant cherubim, and "cherubim," in the highest sense, signify the Lord in relation to providence and guard that He be not approached except through the good of love; and in a relative sense, the inmost heaven (See above, n. 152, 277, 313, 322). "Cherubim" signify also the inmost heaven because this heaven is in the good of love to the Lord, and the Lord cannot be approached except through the heavens, and into the inmost or third heaven there is nothing admitted that does not savor of the good of that heaven. There were four animals or cherubim, because "four" signifies conjunction into one, and such is the conjunction with those who are there; for the Lord thus conjoins them by means of love to Him from Him. For this reason four were seen. From this also it is clear that the second animal here has a similar significance as the first, and similar as the third and fourth in what follows. (That "four" signifies conjunction, see Arcana Coelestia 1686, 8877, 9601, 9674)