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.

(References: Apocalypse Explained 695)

10240. Since 'washing' also means regeneration something more must be said about it. Anyone who does not know that both in the Prophets and in the Gospels the Lord used correspondences when He spoke, and that consequently the Word has an inner meaning, cannot possibly know what the Lord's words in John serve to mean,

Truly, truly, I say to you, Unless a person has been born of water and the spirit he cannot enter the kingdom of God. That which has been born of the flesh is flesh, but that which has been born of the Spirit is spirit. The Spirit breathes where it wishes, and you hear its voice; but you do not know where it comes from and where it goes away to. So is everyone who is born from the Spirit. John 3:5-6, 8.

[2] The meaning of these words is revealed if correspondences are used to explain them; for they contain the arcana of heaven. By virtue of its correspondence 'water' means the truth of faith, which is clearly perceptible within the natural. 'The Spirit' means Divine Truth which flows in from the Lord by way of a person's internal into his external or natural, and from that Truth springs the life of faith which the person who is being regenerated possesses. 'Flesh' is the person's proprium or selfhood, which is nothing but evil. 'The Spirit breathes where it wishes' means that in His mercy the Lord imparts new life by means of Divine Truth. 'You hear its voice' means that this life is perceptible in the external or natural man, 'voice' meaning what is declared by the Word. 'You do not know where it comes from or where it goes away to' means that a person does not know how his regeneration is accomplished, for the Lord accomplishes it in hidden ways that are countless and beyond description.

[3] By virtue of its correspondence 'water' means the truths of faith, see 28, 739, 2702, 3058, 3424, 4976, 5668, 8568, 9323, 10238.

'The Spirit' means Divine Truth, from which the life of faith springs, 9229, 9818.

'Flesh' means a person's proprium, which is nothing but evil, 8409.

'Breathing' means the state of the life of faith, 9281.

'Voice' means what is declared by the Word, consequently truth derived from it, 9926.

'Hearing' means perception, 9311, 9926.

'Coming' and 'going away' or entering and departing mean the state of affairs from start to finish, 9927.

The hidden ways of regeneration are countless and beyond description, 3179, 3573, 5398, 9334 (end), 9336.

What goes on in the internal man is not perceived while the person is in the world, only what goes on in the external or natural, above in 10236.