In Zechariah 8:12, 'the vine shall give her fruit, and the ground her increase,' signifies that the spiritual affection of truth produces the good of charity, and the natural affection of good and truth produces the works of charity.

(参照: Apocalypse Explained 695)

9706. The reason why this should be so is that the human being has been created to conform to an image of heaven and an image of the world, the internal man to conform to the image of heaven and the external man to conform to the image of the world. Therefore when thought and will spring from the internal man they spring from heaven, that is, through heaven from the Lord; but when thought and will spring from the external they spring from the world, that is, through the world from self.